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Browse All : Images from February 1991

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HoloGlobe: Vegetation Index for 1991 on a Flat Earth
HoloGlobe: Vegetation I...
NOAA-11/AVHRR
Global vegetation index...
 
Exploration Imagery
2007-05-15 0:0:0
 
Description
S91-25383 (February 1991) --- (Artist's concept of possible exploration programs.) Unmanned spacecraft will proceed the first human exploration missions to the surface of Mars to assess possible landing sites and conduct scientific and engineering measurements in the atmosphere and on the surface. Landing these robotic spacecraft on Mars is risky at best because of the rugged terrain. The spacecraft depicted in this picture has a vision system to view the possible landing sites as the spacecraft approaches the surface and the intelligence's to select a landing site safe from hazards that would destroy the vehicle. The resolution of the vision system will increase as the vehicle approaches the surface as depicted in the picture. This technology can be used on both unmanned as well as the manned mission to guide the spacecraft safely to the surface. Artwork by Pat Rawlings, of SAIC.
Exploration Imagery
2007-05-15 0:0:0
 
Description
S91-25384 (February 1991) --- This is an artist's concept of possible exploration programs. Five hundred kilometers above the Chryse Planitia region of Mars, an orbital platform uses a laser sensor to autonomously rendezvous with an approaching sample-return ascent stage. The platform's robotic arm will remove the sample canister and store it with samples from other locations for delivery to Earth. Artwork done for NASA by Pat Rawlings, of SAIC.
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