Why Mars is The Scariest Planet (We Shouldn't Go There)

Mars looks like our best chance at becoming a multiplanet species. But the closer we look at what it actually takes to get there, survive there, and try to come back, the more terrifying the picture becomes. In this video, we break down the brutal reality of a crewed Mars mission, from the invisible threat of cosmic radiation that rewrites your DNA, to the slow collapse of your bones, muscles, and heart in reduced gravity. We explore why the human body, after 2 to 3 years away from Earth, may no longer be capable of returning to the planet that built it. This isn't science fiction. This is what current science tells us about the scariest planet in our solar system.
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