Today marks the 40th anniversary — July 20, 1976 — of the first U.S. robotic landing on another planet by the Viking 1 spacecraft on Mars.
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NASA to have limited role in SpaceX’s planned Mars campaign
Expertise, input and advice from seasoned NASA engineers will improve SpaceX’s chances of nailing the first commercial landing on Mars as soon as late 2018, a senior space agency official said Wednesday, but Elon Musk’s space transport company will likely seek more independence from U.S. government support on later expeditions to the red planet.