NASA NTRS · 20060035893
Back to Mars
Abstract
Two decades after humanity's last exploration of the red planet, a new international program of Mars study will begin late this year when NASA's and Caltech's Jet Propulsion Laboratory launches its Mars Global Surveyor orbiting mission and its Mars Pathfinder lander and micro-rover.Spacecraft from Earth last visited Mars in 1976 when two Viking orbiters and two landers conducted a very successful survey of the entire planet from orbit and detailed studies of the surface at the two landing sites.
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Frewing, Kent. 1996-01-01. Back to Mars. https://ntrs.nasa.gov/citations/20060035893
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