SpaceX Elon Musk is adamant that the space company will eventually make humanity interplanetary by establishing a permanent presence on Mars. It's an extremely ambitious plan, involving the company's massive Starship rocket. And if his characteristically unrealistic timelines are anything to go by, the first crewed trip to the Red Planet could take place "as soon as 2029, although 2031 is more likely," according to a March 15 tweet. But not everybody agrees with that assessment. "We’re a good 15 years away from going to Mars, not five years as Elon Musk alludes to," former NASA astronaut José Hernández told […]

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Link :
https://futurism.com/former-nasa-astronaut-elon-musk-mars-15-years