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VANDENBERG AIR FORCE BASE, CALIF. - On the ramp adjacent to the runway at Vandenberg Air Force Base in California, workers install the Space Technology 5's Pegasus rocket beneath an Orbital Sciences L-1011 carrier aircraft. The ST5, which contains three microsatellites with miniaturized redundant components and technologies, is mated to its launch vehicle, Orbital Sciences' Pegasus XL. Each of the ST5 microsatellites will validate New Millennium Program selected technologies, such as the Cold Gas Micro-Thruster and X-Band Transponder Communication System. After deployment from the Pegasus, the micro-satellites will be positioned in a “string of pearls” constellation that demonstrates the ability to position them to perform simultaneous multi-point measurements of the magnetic field using highly sensitive magnetometers. The data will help scientists understand and map the intensity and direction of the Earth’s magnetic field, its relation to space weather events, and affects on our planet. Launch of ST5 and the Pegasus XL will be from underneath the belly of an L-1011 carrier aircraft from Vandenberg Air Force Base. KSC-06pd0557

VANDENBERG AIR FORCE BASE, CALIF. - On the ramp adjacent to the runway...

VANDENBERG AIR FORCE BASE, CALIF. - On the ramp adjacent to the runway at Vandenberg Air Force Base in California, workers install the Space Technology 5's Pegasus rocket beneath an Orbital Sciences L-1011 carr... More

VANDENBERG AIR FORCE BASE, CALIF. - Workers prepare to transport the Space Technology 5 (ST5) spacecraft from Orbital Sciences’ Building 1555 at Vandenberg Air Force Base in California to the L-1011 carrier aircraft in position on the ramp adjacent to the Vandenberg runway. The ST5, which contains three microsatellites with miniaturized redundant components and technologies, is mated to its launch vehicle, Orbital Sciences' Pegasus XL. Each of the ST5 microsatellites will validate New Millennium Program selected technologies, such as the Cold Gas Micro-Thruster and X-Band Transponder Communication System. After deployment from the Pegasus, the micro-satellites will be positioned in a “string of pearls” constellation that demonstrates the ability to position them to perform simultaneous multi-point measurements of the magnetic field using highly sensitive magnetometers. The data will help scientists understand and map the intensity and direction of the Earth’s magnetic field, its relation to space weather events, and affects on our planet. Launch of ST5 and the Pegasus XL will be from underneath the belly of an L-1011 carrier aircraft from Vandenberg Air Force Base. KSC-06pd0554

VANDENBERG AIR FORCE BASE, CALIF. - Workers prepare to transport the S...

VANDENBERG AIR FORCE BASE, CALIF. - Workers prepare to transport the Space Technology 5 (ST5) spacecraft from Orbital Sciences’ Building 1555 at Vandenberg Air Force Base in California to the L-1011 carrier air... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the three stages of the Orbital Sciences Pegasus XL are being mated for the launch of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0650

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in ...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the three stages of the Orbital Sciences Pegasus XL are being mated for the launch of NASA's Aeronomy of Ice in the Mesosphere, ... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers ensure the placement of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft on a stand. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0675

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenb...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers ensure the placement of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft on a stand. A... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand prepares the first stage of the Orbital Sciences Pegasus XL rocket, at left, to be mated to the second stage, at right, for the launch of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0653

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in ...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand prepares the first stage of the Orbital Sciences Pegasus XL rocket, at left, to be mated to the ... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, technicians discuss the process for mating the first and second stages of the Orbital Sciences Pegasus XL rocket in front of them. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0654

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in C...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, technicians discuss the process for mating the first and second stages of the Orbital Sciences Pegasus XL rocket in front of them... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand (center) prepares the second stage of the Orbital Sciences Pegasus XL rocket to be mated to the first stage, at left, for the launch of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0651

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in ...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand (center) prepares the second stage of the Orbital Sciences Pegasus XL rocket to be mated to the f... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand prepares the second stage of the Orbital Sciences Pegasus XL rocket to be mated to the first stage, at left, for the launch of NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0652

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in ...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician on the work stand prepares the second stage of the Orbital Sciences Pegasus XL rocket to be mated to the first sta... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers move the stand holding NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft under a clean room tent. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0676

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers move the stand holding NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft under a clean room tent. AIM is th... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician checks the final step in mating of the first and second stages of the Orbital Sciences Pegasus XL rocket. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0655

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in C...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a technician checks the final step in mating of the first and second stages of the Orbital Sciences Pegasus XL rocket. The rocke... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers stand beside NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft, waiting for an overhead crane. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0674

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenber...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers stand beside NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft, waiting for an overhead c... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a worker monitors the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0659

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a worker monitors the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is t... More

VANDENBERG AIR FORCE BASE, CALIF. -- Seen at Vandenberg Air Force Base in California is the fairing (foreground) for the Orbital Sciences Pegasus XL rocket. In the background is the third stage, under the clean room tent. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0657

VANDENBERG AIR FORCE BASE, CALIF. -- Seen at Vandenberg Air Force Bas...

VANDENBERG AIR FORCE BASE, CALIF. -- Seen at Vandenberg Air Force Base in California is the fairing (foreground) for the Orbital Sciences Pegasus XL rocket. In the background is the third stage, under the clea... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers monitor the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0661

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers monitor the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is the... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the Orbital Sciences Pegasus XL rocket undergoes its second flight simulation. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0656

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in C...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the Orbital Sciences Pegasus XL rocket undergoes its second flight simulation. The rocket is the launch vehicle for NASA's Aeron... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers monitor the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0658

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, workers monitor the data produced by the second flight simulation of the Orbital Sciences Pegasus XL rocket. The rocket is the... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a worker monitors the Orbital Sciences Pegasus XL rocket after a second flight simulation. The rocket is the launch vehicle for NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0660

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in ...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, a worker monitors the Orbital Sciences Pegasus XL rocket after a second flight simulation. The rocket is the launch vehicle for ... More

VANDENBERG AIR FORCE BASE, CALIF. -- NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft arrives in a clean room at Vandenberg Air Force Base in California. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0663

VANDENBERG AIR FORCE BASE, CALIF. -- NASA's Aeronomy of Ice in the ...

VANDENBERG AIR FORCE BASE, CALIF. -- NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft arrives in a clean room at Vandenberg Air Force Base in California. AIM is the seventh Small Explorers missi... More

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the second and third stages of the Orbital Sciences Pegasus XL rocket wait for mating. The rocket is the launch vehicle for the NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0662

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in...

VANDENBERG AIR FORCE BASE, CALIF. -- At Vandenberg Air Force Base in California, the second and third stages of the Orbital Sciences Pegasus XL rocket wait for mating. The rocket is the launch vehicle for th... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers stand beside NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft, waiting for an overhead crane they will attach. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0667

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenbe...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers stand beside NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft, waiting for an overhead ... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers observe NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft as it is lowered onto a scale. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0669

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenber...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers observe NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft as it is lowered onto a scale... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers remove the shipping container from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0665

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenb...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers remove the shipping container from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacec... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, a worker adjusts the attach points of an overhead crane on NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0668

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenbe...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, a worker adjusts the attach points of an overhead crane on NASA's Aeronomy of Ice in the Mesosphere, or AIM... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers begin lifting the shipping container from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0664

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenbe...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, workers begin lifting the shipping container from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, ... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, the shipping container removed from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft at left, is lowered onto the floor nearby. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0666

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vanden...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, the shipping container removed from around NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft a... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft is weighed. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0670

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenbe...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside a clean room at Vandenberg Air Force Base in California, NASA's Aeronomy of Ice in the Mesosphere, or AIM, spacecraft is weighed. AIM is the seventh Small Explorer... More

VANDENBERG AIR FORCE BASE, CALIF. -- At North Vandenberg Air Force Base in California, workers offload from the truck the shipping container with NASA's AIM spacecraft inside. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0672

VANDENBERG AIR FORCE BASE, CALIF. -- At North Vandenberg Air Force B...

VANDENBERG AIR FORCE BASE, CALIF. -- At North Vandenberg Air Force Base in California, workers offload from the truck the shipping container with NASA's AIM spacecraft inside. AIM is the seventh Small Explore... More

VANDENBERG AIR FORCE BASE, CALIF. -- A shipping truck carrying NASA's AIM spacecraft arrives at Building 1555 on North Vandenberg Air Force Base in California. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0671

VANDENBERG AIR FORCE BASE, CALIF. -- A shipping truck carrying NASA'...

VANDENBERG AIR FORCE BASE, CALIF. -- A shipping truck carrying NASA's AIM spacecraft arrives at Building 1555 on North Vandenberg Air Force Base in California. AIM is the seventh Small Explorers mission und... More

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, workers move the shipping container with NASA's AIM spacecraft inside into Building 1555. AIM is the seventh Small Explorers mission under NASA's Explorer Program. The program provides frequent flight opportunities for world-class scientific investigations from space within heliophysics and astrophysics. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0673

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in ...

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, workers move the shipping container with NASA's AIM spacecraft inside into Building 1555. AIM is the seventh Small Explorers mis... More

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers get ready to attach the overhead crane to the AIM spacecraft. AIM will be moved into an area where a partial deployment of the solar arrays on the spacecraft will take place. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0687

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vand...

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers get ready to attach the overhead crane to the AIM spacecraft. AIM will be moved into an area where a partial... More

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, a technician places a star tracker cover on the AIM spacecraft during testing of the solar array panel deployment. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0699

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Build...

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, a technician places a star tracker cover on the AIM spacecraft during testing of the solar arra... More

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers lower the AIM spacecraft onto a moveable base. AIM will be moved into an area where a partial deployment of the solar arrays on the spacecraft will take place.The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0689

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vande...

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers lower the AIM spacecraft onto a moveable base. AIM will be moved into an area where a partial deployment of t... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are the instruments that will study polar mesospheric clouds located at the edge of space. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0697

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are ... More

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers prepare the area where a partial deployment of the solar arrays on the AIM spacecraft will take place. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0686

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vand...

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers prepare the area where a partial deployment of the solar arrays on the AIM spacecraft will take place. The A... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0691

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of ...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. T... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are the instruments that will study polar mesospheric clouds located at the edge of space. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0696

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are ... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0692

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of ...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. T... More

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, a star tracker cover is ready for placement on the AIM spacecraft during testing of the solar array panel deployment. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0698

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Buildi...

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, a star tracker cover is ready for placement on the AIM spacecraft during testing of the solar ar... More

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers roll the AIM spacecraft into the "tent" where a partial deployment of the solar arrays on the spacecraft will take place. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0690

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vanden...

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers roll the AIM spacecraft into the "tent" where a partial deployment of the solar arrays on the spacecraft will t... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are the instruments that will study polar mesospheric clouds located at the edge of space. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0701

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" o...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, two of the solar array panels on the AIM spacecraft are deployed for testing. Inside are... More

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers lift the AIM spacecraft from its stand in order to move it into an area where a partial deployment of the solar arrays on the spacecraft will take place. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0688

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vande...

VANDENBERG AIR FORCE BASE, CALIF. -- In Building 1555 at North Vandenberg Air Force Base, workers lift the AIM spacecraft from its stand in order to move it into an area where a partial deployment of the sola... More

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians place a star tracker cover on the AIM spacecraft during testing of the solar array panel deployment. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0700

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Buildi...

KENNEDY SPACE CENTER, FLA. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians place a star tracker cover on the AIM spacecraft during testing of the solar array p... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0695

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of ...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. T... More

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0693

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of ...

VANDENBERG AIR FORCE BASE, CALIF. -- Inside the clean-room "tent" of Building 1555 at North Vandenberg Air Force Base, technicians in bunny suits prepare for the solar array deployment on the AIM spacecraft. T... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment containing the AIM spacecraft (background) at North Vandenberg Air Force Base, a technician studies results of illumination testing on the spacecraft's solar array panels. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0705

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment con...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment containing the AIM spacecraft (background) at North Vandenberg Air Force Base, a technician studies results of illumination testing on the spac... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians work on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0707

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians work on the AIM spacecraft. The AIM spacecraft will fly three instruments designed to study po... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0708

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. AIM will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0714

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0709

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician begins the illumination testing of the AIM spacecraft at left. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0703

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician begins the illumination testing of the AIM spacecraft at left. The AIM spacecraft will fly t... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians look at part of the AIM spacecraft. AIM will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0711

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians look at part of the AIM spacecraft. AIM will fly three instruments designed to study polar mes... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0710

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. AIM will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0713

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, lights are reflected on the solar array panels of the AIM spacecraft during illumination testing. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0704

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, lights are reflected on the solar array panels of the AIM spacecraft during illumination testing. The AIM s... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians look at an area of the AIM spacecraft. AIM will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0712

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians look at an area of the AIM spacecraft. AIM will fly three instruments designed to study polar ... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician monitors the AIM spacecraft after illumination testing on the spacecraft's solar array panels. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0706

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician monitors the AIM spacecraft after illumination testing on the spacecraft's solar array panels.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed. AIM will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0715

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at ...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, technicians remove covers from instruments in the AIM spacecraft while solar panels are partially deployed.... More

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician prepares the lights for illumination testing of the AIM spacecraft at left. The AIM spacecraft will fly three instruments designed to study those clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to the Pegasus XL during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0702

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at...

VANDENBERG AIR FORCE BASE, CALIF. -- In a clean-room environment at North Vandenberg Air Force Base, a technician prepares the lights for illumination testing of the AIM spacecraft at left. The AIM spacecra... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians look over the spacecraft handling fixture that will be used to lift the AIM spacecraft. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0782

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians look over the spacecraft handling fixture that will be used to lift the AIM spacecraft. AIM, which ... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians work on the separation system to be mated to the AIM spacecraft. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0776

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians work on the separation system to be mated to the AIM spacecraft. AIM, which stands for Aeronomy of ... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians work on the separation system to be mated to the AIM spacecraft, hovering above it. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0780

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians work on the separation system to be mated to the AIM spacecraft, hovering above it. AIM, which stan... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lift the AIM spacecraft via the spacecraft handling fixture attached to it. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0787

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lift the AIM spacecraft via the spacecraft handling fixture attached to it. AIM, which stands for A... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lower the spacecraft handling fixture around the AIM spacecraft. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0786

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lower the spacecraft handling fixture around the AIM spacecraft. AIM, which stands for Aeronomy of ... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians move a mobile stand toward the AIM spacecraft suspended via a crane at left. . AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0788

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians move a mobile stand toward the AIM spacecraft suspended via a crane at left. . AIM, which stands fo... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians maneuver the spacecraft handling fixture toward the AIM spacecraft. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0785

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians maneuver the spacecraft handling fixture toward the AIM spacecraft. AIM, which stands for Aeronom... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians roll the AIM spacecraft back under the protective clean tent. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0791

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians roll the AIM spacecraft back under the protective clean tent. AIM, which stands for Aeronomy of I... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians carry the separation system, at left, toward the AIM spacecraft hovering above the stand at right. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0779

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg A...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians carry the separation system, at left, toward the AIM spacecraft hovering above the stand at right. ... More

KENNEDY SPACE CENTER, FLA. -- Flight simulation No. 3 is on the schedule for the Pegasus XL launch vehicle, seen here in Building 1555 on North Vandenberg Air Force Base in California. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0775

KENNEDY SPACE CENTER, FLA. -- Flight simulation No. 3 is on the sche...

KENNEDY SPACE CENTER, FLA. -- Flight simulation No. 3 is on the schedule for the Pegasus XL launch vehicle, seen here in Building 1555 on North Vandenberg Air Force Base in California. AIM, which stands for ... More

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lower the AIM spacecraft onto a moveable stand. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0789

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg ...

KENNEDY SPACE CENTER, FLA. -- In Building 1555 on North Vandenberg Air Force Base in California, technicians lower the AIM spacecraft onto a moveable stand. AIM, which stands for Aeronomy of Ice in the Mesos... More

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft is moved into a clean room for testing. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0794

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in ...

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft is moved into a clean room for testing. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being pr... More

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft has been rotated to horizontal prior to its move to the clean room for testing. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0792

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in ...

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft has been rotated to horizontal prior to its move to the clean room for testing. AIM, which stands for Aeronom... More

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft is prepared for its move to the clean room for testing. AIM, which stands for Aeronomy of Ice in the Mesosphere, is being prepared for integrated testing and a flight simulation. The AIM spacecraft will fly three instruments designed to study polar mesospheric clouds located at the edge of space, 50 miles above the Earth's surface in the coldest part of the planet's atmosphere. The mission's primary goal is to explain why these clouds form and what has caused them to become brighter and more numerous and appear at lower latitudes in recent years. AIM's results will provide the basis for the study of long-term variability in the mesospheric climate and its relationship to global climate change. AIM is scheduled to be mated to its launch vehicle, Orbital Sciences' Pegasus XL, during the second week of April, after which final inspections will be conducted. Launch is scheduled for April 25. KSC-07pd0793

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in ...

KENNEDY SPACE CENTER, FLA. -- At North Vandenberg Air Force Base in California, the AIM spacecraft is prepared for its move to the clean room for testing. AIM, which stands for Aeronomy of Ice in the Mesosph... More

Pegasus XL CYGNSS - "Days to Launch" Sign

Pegasus XL CYGNSS - "Days to Launch" Sign

A sign just inside the gate to NASA's Kennedy Space Center in Florida notes that in seven days a Pegasus XL rocket is scheduled to launch with eight agency Cyclone Global Navigation Satellite System, or CYGNSS,... More

Pegasus XL CYGNSS - "Days to Launch" Sign

Pegasus XL CYGNSS - "Days to Launch" Sign

A sign just inside the gate to NASA's Kennedy Space Center in Florida notes that in seven days a Pegasus XL rocket is scheduled to launch with eight agency Cyclone Global Navigation Satellite System, or CYGNSS,... More

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

At Cape Canaveral Air Force Station's Skid Strip the Orbital ATK L-1011 Stargazer aircraft is being prepared to launch NASA's Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft. The eight micro s... More

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

At Cape Canaveral Air Force Station's Skid Strip the Orbital ATK L-1011 Stargazer aircraft is being prepared to launch NASA's Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft. The eight micro s... More

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

Pegasus XL CYGNSS Prepared for Launch Aboard Orbital ATK's L-101

At Cape Canaveral Air Force Station's Skid Strip the Orbital ATK L-1011 Stargazer aircraft is being prepared to launch NASA's Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft. The eight micro s... More

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft is ready for takeoff from the Skid Strip at Cape Canaveral... More

Pegasus XL CYGNSS First Launch Attempt

Pegasus XL CYGNSS First Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS First Launch Attempt

Pegasus XL CYGNSS First Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS First Launch Attempt

Pegasus XL CYGNSS First Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS First Launch Attempt

Pegasus XL CYGNSS First Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS Launch Attempt; Scrubbed - Take Off

Pegasus XL CYGNSS Launch Attempt; Scrubbed - Take Off

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft takes off from the Skid Strip at Cape Canaveral Air Force ... More

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft is ready for takeoff from the Skid Strip at Cape Canaveral... More

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

A pathfinder aircraft prepares for takeoff from the Skid Strip at Cape Canaveral Air Force Station in Florida. The airplane will provide photographic and video imagery of the Orbital ATK L-1011 Stargazer aircra... More

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

Pegasus XL CYGNSS Launch Attempt - Prepared for Takeoff - Scrubb

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft is ready for takeoff from the Skid Strip at Cape Canaveral... More

Pegasus XL CYGNSS First Launch Attempt

Pegasus XL CYGNSS First Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft takes off from the Skid Strip at Cape Canaveral Air Force ... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

A pathfinder aircraft soars high after takeoff from the Skid Strip at Cape Canaveral Air Force Station in Florida. The airplane will provide photographic and video imagery of the Orbital ATK L-1011 Stargazer ai... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

In the Mission Director's Center at Cape Canaveral Air Force Station, Andy Bundy, Avionics lead, left, and Pat Simpkins, director of Kennedy Space Center Engineering, monitor the progress of preparations to lau... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

In the Mission Director's Center at Cape Canaveral Air Force Station, members of the launch team monitor the progress of preparations to launch eight Cyclone Global Navigation Satellite System, or CYGNSS, space... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

An Orbital ATK L-1011 Stargazer touches down at the Skid Strip at Cape Canaveral Air Force Station in Florida. The aircraft carried a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft is ready for takeoff from the Skid Strip at Cape Canaveral... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

A pathfinder aircraft descends for touchdown at the Skid Strip at Cape Canaveral Air Force Station in Florida. The airplane provided photographic and video imagery of the Orbital ATK L-1011 Stargazer aircraft c... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

An Orbital ATK L-1011 Stargazer aircraft descends toward the Skid Strip at Cape Canaveral Air Force Station in Florida. The aircraft carried a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satelli... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

A pathfinder aircraft begins its takeoff from the Skid Strip at Cape Canaveral Air Force Station in Florida. The airplane will provide photographic and video imagery of the Orbital ATK L-1011 Stargazer aircraft... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

An Orbital ATK L-1011 Stargazer aircraft carrying a Pegasus XL Rocket with eight NASA Cyclone Global Navigation Satellite System, or CYGNSS, spacecraft is ready for takeoff from the Skid Strip at Cape Canaveral... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

A pathfinder aircraft takes off from the Skid Strip at Cape Canaveral Air Force Station in Florida. The airplane will provide photographic and video imagery of the Orbital ATK L-1011 Stargazer aircraft carrying... More

Pegasus XL CYGNSS Second Launch Attempt

Pegasus XL CYGNSS Second Launch Attempt

Photographed from the F-18 pathfinder aircraft, the Orbital ATK L-1011 Stargazer aircraft is seen flying over the Atlantic Ocean offshore from Daytona Beach, Florida. Attached beneath the aircraft is the Pegasu... More

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