On this date in 1971, Mariner 9 was inserted into Mars orbit, - TopicsExpress



          

On this date in 1971, Mariner 9 was inserted into Mars orbit, becoming the first spacecraft to orbit another planet. The first photograph is a reprocessed Mariner 9 image of Olympus Mons, a shield volcano on Mars 374 miles in diameter (approximately the same size as the state of Arizona), 16 miles high, and rimmed by a 4 mile high scarp. The second photo is a Mariner 9 photo mosaic of Mars being assembled by hand—old school! #Mars #NASA #JPL Photo credits: NASA/MSSS/Jet Propulsion Laboratory
Posted on: Fri, 14 Nov 2014 14:05:00 +0000

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