To all the looney lunar landing deniers and conspiracy theorists out there, NASA has just four words to say: "Apollo: Yes, We Did."

Yes, the United States Certainly DID Land Humans on the Moon

Moon-landing deniers, says space scholar and former NASA chief historian Roger Launius, are full of stuff and nonsense

Though the technological challenges for a future Mars mission are considerable, a proposal to "live off the land" using resources on the Red Planet might dramatically simplify exploration plans.

A Smithsonian Researcher Reflects on What It Will Take to Land Humans on Mars

In a new book on space exploration, Smithsonian curator emeritus Roger D. Launius predicts boots on the Red Planet ground by the 2030s

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