Days later, Dmitriev said he is expecting to speak with Musk, the world's richest man, about a potential mission to Mars.
A mission to Mars would involve a six-to-nine-month journey to the Red Planet, surface explorations, and then a similar ...
Sunita Williams and Butch Wilmore Return to Earth Live Updates: NASA announced that astronauts Butch Wilmore and Suni ...
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