Lander, Richard Lemon - Public domain portrait engraving
Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description
Lander, John - Public domain portrait engraving
Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description
Lander, Frederick West - Public domain portrait print
Public domain image of a military uniform, officer portrait, armed forces, free to use, no copyright restrictions - Picryl description
map from "The Travels of Richard and John Lander ... for the discovery...
This image has been taken from scan 000067 from "The Travels of Richard and John Lander ... for the discovery of the course ... of the Niger, from unpublished documents in the possession of the late J. W. Barbe... More
Design of an electrical clock [of Souire Lander & Co. - advertisement]
Reference copy may be in LOT 7007. This record contains unverified, old data from caption card. Caption card tracings: Ads Misc.; Clocks...; Broadsides; Rare Bk. Div.; Shelf.
[Jean M. Lander, half-length portrait, seated]
Written in ink on photograph: To my loving friends, Jean M. Lander, 1856 ...
Near Last Camp on Ross Fork, Snake River, Lander Wagon Road, Oregon
Henry Hitchings (1824–1902) Public domain photograph of 19th-century landscape drawing, nature, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image, drawing, American, 19th centu...
Picryl description: Public domain image, drawing, American, free to use, no copyright restrictions
Lander, American Civil War Photograph, Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Colonel (?) Lander, American Civil War Photograph, Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Lander, American Civil War Photograph, Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Lander, American Civil War Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Colonel (?) Lander, American Civil War Photograph, Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Colonel (?) Lander, American Civil War Photograph, Glass Negative.
A black and white photo of a man in uniform. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Daring ride [on horseback] of Colonel Lander at the Battle of Philippi...
Public domain photograph - United States during American Civil War, free to use, no copyright restrictions image - Picryl description
Brigadier General Lander - Print, Library of Congress collection
72 U.S. Copyright Office. This record contains unverified data from PGA shelflist card. Associated name on shelflist card: Bufford.
Ramey, Lander - State: Virginia - Year: 1865
Papers Relating to Citizens
Polar - Karte : enthaltend, die Lander V. Meere vom Nord - Pol bis 50 ...
Constan ademas coordenadas según el meridiano de París
Henrietta Lander, from the Actors and Actresses series (N45, Type 8) f...
Public domain scan of portrait art print, free to use, no copyright restrictions image - Picryl description
Confederate Army Carded Records - Wills, Lander T - 13th Cavalry
Age is [Blank]. Year listed as [BLANK]. Carded Records Showing Military Service of Soldiers Who Fought in Confederate Organizations
Robertson, Lander - Age [Blank], Year: [Blank] - Nineteenth Infantry, ...
Carded Records Showing Military Service of Soldiers Who Fought in Confederate Organizations
Stående fr.v.1 Johan Frid, 2 Johan Haglund, 3 Ville Bengtsson,4 Konra...
Stående fr.v.1 Johan Frid, 2 Johan Haglund, 3 Ville Bengtsson,4 Konrad Jonsson (Kläppa), 5 Johan Bolinder, 6 Arvid Bolinder,7 Per Olsson, 8 Anders Andersson(Brink), 9 Håkan Persson(Lock),10 Håkan Persson(Lock)... More
Chesapeake & Ohio Canal, Lockhouse at Lock 29, 50.9 miles above tidewa...
Unprocessed Field note material exists for this structure: FN-87 Survey number: HABS MD-751
Road through desert. Lander County, Nevada
Public domain photograph of United States agriculture in the 1930s, country, farmer, farm, great depression, migration, dust bowl refugees, free to use, no copyright restrictions image - Picryl description
Desert. Lander County, Nevada - safety film negatives, Library of Cong...
Public domain photograph of United States countryside, nature, during 1930s, free to use, no copyright restrictions image - Picryl description
New Britain, Connecticut. Hot cores under a cooling ventilator in the ...
Public domain photograph of Connecticut in 1930s, free to use, no copyright restrictions image - Picryl description
New Britain, Connecticut. Hot cores under a cooling ventilator in the ...
Public domain photograph of Connecticut in 1930s, free to use, no copyright restrictions image - Picryl description
New Britain, Connecticut. Women at the Lander, Frary and Clark plant. ...
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.
Lander Mill in Lander, Wyoming. The grain mill was built in 1888 for t...
Title, date and keywords based on information provided by the photographer. Gift; Carol M. Highsmith Photography, Inc.; 2017; (DLC/PP-2002:038-13). Forms part of: Gates Frontiers Fund Wyoming Collection within ... More
Lander Mill in Lander, Wyoming. The grain mill was built in 1888 for t...
Title, date and keywords based on information provided by the photographer. Gift; Carol M. Highsmith Photography, Inc.; 2017; (DLC/PP-2002:038-13). Forms part of: Gates Frontiers Fund Wyoming Collection within ... More
Propane bubble chamber with Warren Chupp and Dick Lander taken Septemb...
Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, the ...
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, the Project Morpheus prototype lander’s engine begins to fire during a tether test at the north end of the Shuttle Landing Facility. During the ... More
CAPE CANAVERAL, Fla. - NASA's Morpheus lander, a vertical test bed veh...
CAPE CANAVERAL, Fla. - NASA's Morpheus lander, a vertical test bed vehicle, is being transported out from its checkout building for a short trip to a launch position at the Shuttle Landing Facility, or SLF, at ... More
CAPE CANAVERAL, Fla. – Steady progress is made on the construction of ...
CAPE CANAVERAL, Fla. – Steady progress is made on the construction of the hazard field for the Project Morpheus lander near the Shuttle Landing Facility, or SLF, at NASA’s Kennedy Space Center in Florida. Te... More
CAPE CANAVERAL, Fla. – From left, Chirold Epp, the Autonomous Landing ...
CAPE CANAVERAL, Fla. – From left, Chirold Epp, the Autonomous Landing and Hazard Avoidance Technology, or ALHAT, project manager, and Jon Olansen, Morpheus project manager, speak to members of the media near th... More
CAPE CANAVERAL, Fla. – The hazard field for the Project Morpheus lande...
CAPE CANAVERAL, Fla. – The hazard field for the Project Morpheus lander is conveniently located near the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. In the distance is the 525-foot-tall... More
CAPE CANAVERAL, Fla. – Steady progress is made to prepare equipment fo...
CAPE CANAVERAL, Fla. – Steady progress is made to prepare equipment for construction of the launch platform for the Project Morpheus lander at the midfield of the Shuttle Landing Facility, or SLF, at NASA’s Ken... More
CAPE CANAVERAL, Fla. – NASA's Project Morpheus prototype lander is bei...
CAPE CANAVERAL, Fla. – NASA's Project Morpheus prototype lander is being transported to the north end of the Shuttle Landing Facility for free flight test number 15 at NASA’s Kennedy Space Center in Florida. Th... More
CAPE CANAVERAL, Fla. – NASA's Project Morpheus prototype lander is pre...
CAPE CANAVERAL, Fla. – NASA's Project Morpheus prototype lander is prepared for transport to the north end of the Shuttle Landing Facility for free flight test number 15 at NASA’s Kennedy Space Center in Florid... More
CAPE CANAVERAL, Fla. - At the north end of the Shuttle Landing Facilit...
CAPE CANAVERAL, Fla. - At the north end of the Shuttle Landing Facility, or SLF, at the Kennedy Space Center in Florida, NASA's Morpheus lander, a vertical test bed vehicle is being checked out. A rock and crat... More
CAPE CANAVERAL, Fla. -- A technician prepares the Project Morpheus pro...
CAPE CANAVERAL, Fla. -- A technician prepares the Project Morpheus prototype lander for a second free flight test at the north end of the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. Test... More
CAPE CANAVERAL, Fla. - Rob Mueller, left, NASA senior technologist in ...
CAPE CANAVERAL, Fla. - Rob Mueller, left, NASA senior technologist in the Surface Systems Office in Kennedy Space Center's Engineering and Technology Directorate, talks with former NASA Apollo astronaut Buzz Al... More
CAPE CANAVERAL, Fla. -- The first free-flight test of NASA's Morpheus ...
CAPE CANAVERAL, Fla. -- The first free-flight test of NASA's Morpheus prototype lander was conducted at the Shuttle Landing Facility at NASA's Kennedy Space Center in Florida. The 98-second test began at 10:02 ... More
CAPE CANAVERAL, Fla. - NASA's Morpheus lander, a vertical test bed veh...
CAPE CANAVERAL, Fla. - NASA's Morpheus lander, a vertical test bed vehicle, is moved into a building at the Shuttle Landing Facility, or SLF, at the Kennedy Space Center in Florida. Morpheus is designed to demo... More
CAPE CANAVERAL, Fla. –NASA's Project Morpheus prototype lander perform...
CAPE CANAVERAL, Fla. –NASA's Project Morpheus prototype lander performed a free-flight test from a launch pad at the north end of the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. The 97-s... More
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, tech...
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, technicians work on the buildup of a movable launch platform for the Project Morpheus lander at the midfield of the Shuttle Landing Facility, or... More
CAPE CANAVERAL, Fla. – Engineers and technicians prepare NASA's Projec...
CAPE CANAVERAL, Fla. – Engineers and technicians prepare NASA's Project Morpheus prototype lander for free flight test number 15 on a launch pad at the north end of the Shuttle Landing Facility at NASA's Kenned... More
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, smok...
CAPE CANAVERAL, Fla. – At NASA’s Kennedy Space Center in Florida, smoke fills the air as the Project Morpheus prototype lander’s engine fires during a tether test at the north end of the Shuttle Landing Facilit... More
CAPE CANAVERAL, Fla. – The first free flight of the Project Morpheus p...
CAPE CANAVERAL, Fla. – The first free flight of the Project Morpheus prototype lander was conducted at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. Smoke fills the air as the engine f... More
Repetitie Nederlands Ballet. Toni Lander doet een danspas
Repetitie Nederlands Ballet. Toni Lander doet een danspas voor Public domain photograph of the Netherlands in 1961 by The Algemeen Nederlandsch Fotobureau (ANeFo), also known as the General Dutch Photo Bureau,... More
Dr H. 'Chuck' Klein (l) with Dr R. Young looking into the Mars box (s...
Dr H. 'Chuck' Klein (l) with Dr R. Young looking into the Mars box (simulator), which simulated the environment of Mars for the preparation of life sciences experiments for the Viking lander.
Copper Canyon Camp of the International Smelting & Refining Company, S...
Survey number: HAER NV-21-B Public domain photograph - historical image of Nevada, United States, free to use, no copyright restrictions image - Picryl description
Apollo Capsule/Lunar Lander: The goal of Project Apollo was to land m...
Apollo Capsule/Lunar Lander: The goal of Project Apollo was to land man on the moon and return them safely to the Earth. The Apollo spacecraft consisted of a command module serving as the crew’s quarters and ... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facil...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander (foreground) can be seen inside the backshell. In the background, workers are helping place the heat shield, j... More
Phoenix Mars Lander Spacecraft Processing
This closeup shows the Phoenix Mars Lander spacecraft nestled inside the backshell. The spacecraft is ready for spin testing on the spin table to which it is attached in the Payload Hazardous Servicing Facility... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, technicians lower a crane over the Phoenix Mars Lander spacecraft. The crane will be used to remove the heat shield from around the Phoenix. The Phoenix mission is t... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians prepare to install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, an overhead crane moves the heat shield toward a platform at left. The heat shield was removed from the Phoenix Mars Lander spacecraf... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facil...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, workers help guide the heat shield onto a platform. The heat shield was removed from the Phoenix Mars Lander spacecraft.. The Phoenix ... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, an overhead crane lifts the heat shield from the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of ... More
Phoenix Mars Lander Spacecraft Processing
An overhead crane lowers the backshell with the Phoenix Mars Lander inside toward a spin table for spin testing in the Payload Hazardous Servicing Facility. The Phoenix mission is the first project in NASA's fi... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the heat shield for the Phoenix Mars Lander is moved into position for installation on the spacecraft. The Phoenix mission is the firs... More
KENNEDY SPACE CENTER, FLA. -- This closeup shows the Phoenix Mars Lan...
KENNEDY SPACE CENTER, FLA. -- This closeup shows the Phoenix Mars Lander spacecraft nestled inside the backshell. The spacecraft will undergo spin testing on the spin table to which it is attached in the Payl... More
CAPE CANAVERAL, Fla. – The first free flight of the Project Morpheus p...
CAPE CANAVERAL, Fla. – The first free flight of the Project Morpheus prototype lander was conducted at the Shuttle Landing Facility at NASA’s Kennedy Space Center in Florida. Smoke fills the air as the engine f... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facil...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians secure the backshell with the Phoenix Mars Lander inside onto a spin table for spin testing. The Phoenix mission is the fi... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians complete the installation of the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first proje... More
KENNEDY SPACE CENTER, FLA. -- Secured on the spin table, the backshell...
KENNEDY SPACE CENTER, FLA. -- Secured on the spin table, the backshell with the Phoenix Mars Lander inside is ready for spin testing in the Payload Hazardous Servicing Facility. The Phoenix mission is the first... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians lower a crane over the Phoenix Mars Lander spacecraft. The crane will be used to remove the heat shield from around the P... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first op... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, technicians attach a crane to the Phoenix Mars Lander spacecraft. The crane will be used to remove the heat shield from around the Ph... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, technicians install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed program of Mars S... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, workers watch as an overhead crane lowers the heat shield toward a platform. The heat shield was removed from the Phoenix Mars Lander ... More
KENNEDY SPACE CENTER, FLA. -- An overhead crane lowers the backshell w...
KENNEDY SPACE CENTER, FLA. -- An overhead crane lowers the backshell with the Phoenix Mars Lander inside onto a spin table for spin testing in the Payload Hazardous Servicing Facility. The Phoenix mission is th... More
KENNEDY SPACE CENTER, FLA. -- An overhead crane lifts the backshell wi...
KENNEDY SPACE CENTER, FLA. -- An overhead crane lifts the backshell with the Phoenix Mars Lander inside off its work stand in the Payload Hazardous Servicing Facility. The spacecraft is being moved to a spin t... More
Phoenix Mars Lander Spacecraft Processing
An overhead crane lifts the backshell with the Phoenix Mars Lander inside off its work stand in the Payload Hazardous Servicing Facility. The spacecraft is being moved to a spin table (back left) for spin testi... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, workers watch as an overhead crane lowers the heat shield toward a platform. The heat shield was removed from the Phoenix Mars Lander spacecraft. The Phoenix mission... More
KENNEDY SPACE CENTER, FLA. -- This closeup shows the spin test of th...
KENNEDY SPACE CENTER, FLA. -- This closeup shows the spin test of the Phoenix Mars Lander in the Payload Hazardous Servicing Facility. The Phoenix mission is the first project in NASA's first openly competed ... More
Phoenix Mars Lander Spacecraft Processing
This closeup shows the Phoenix Mars Lander spacecraft nestled inside the backshell. The spacecraft will undergo spin testing on the spin table to which it is attached in the Payload Hazardous Servicing Facility... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, technicians complete the installation of the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly compe... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, an overhead crane moves the heat shield toward a platform at left. The heat shield was removed from the Phoenix Mars Lander spacecraft at right. The Phoenix mission ... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facil...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander (foreground) can be seen inside the backshell. In the background, workers are helping place the heat shield, j... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, technicians secure the backshell with the Phoenix Mars Lander inside onto a spin table for spin testing. The Phoenix mission is the first project in NASA's first ope... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, technicians attach a crane to the Phoenix Mars Lander spacecraft. The crane will be used to remove the heat shield from around the Phoenix. The Phoenix mission is th... More
KENNEDY SPACE CENTER, FLA. -- This closeup shows the Phoenix Mars Lan...
KENNEDY SPACE CENTER, FLA. -- This closeup shows the Phoenix Mars Lander spacecraft nestled inside the backshell. The spacecraft is ready for spin testing on the spin table to which it is attached in the Payl... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed pr... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, an overhead crane lifts the heat shield from the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's f... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. P... More
Phoenix Mars Lander Spacecraft Processing
This closeup shows the spin test of the Phoenix Mars Lander in the Payload Hazardous Servicing Facility. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. ... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Faci...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed pr... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, the heat shield for the Phoenix Mars Lander is moved into position for installation on the spacecraft. The Phoenix mission is the first project in NASA's first openl... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, workers help guide the heat shield onto a platform. The heat shield was removed from the Phoenix Mars Lander spacecraft.. The Phoenix mission is the first project in... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, technicians prepare to install the heat shield on the Phoenix Mars Lander spacecraft. The Phoenix mission is the first project in NASA's first openly competed progra... More
Phoenix Mars Lander Spacecraft Processing
In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander (foreground) can be seen inside the backshell. In the background, workers are helping place the heat shield, just removed from the Phoenix, o... More
CAPE CANAVERAL, Fla. -- Engineers and technicians prepare the Project ...
CAPE CANAVERAL, Fla. -- Engineers and technicians prepare the Project Morpheus prototype lander for a second free flight test at the north end of the Shuttle Landing Facility at NASA’s Kennedy Space Center in F... More
KENNEDY SPACE CENTER, FLA. -- An overhead crane lowers the backshell w...
KENNEDY SPACE CENTER, FLA. -- An overhead crane lowers the backshell with the Phoenix Mars Lander inside toward a spin table for spin testing in the Payload Hazardous Servicing Facility. The Phoenix mission is ... More
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Fac...
KENNEDY SPACE CENTER, FLA. -- In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed p... More
Phoenix Mars Lander Spacecraft Heat Shield Installation
In the Payload Hazardous Servicing Facility, the Phoenix Mars Lander spacecraft undergoes spin testing. The Phoenix mission is the first project in NASA's first openly competed program of Mars Scout missions. P... More