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Two Key Things Astronaut Scott Kelly's Body Will Teach Us About Living in Space

We’re all looking forward to interstellar travel and colonizing Mars, but first, we’ve got a lot to learn about how the human body responds to the cold dark void of outer space. Scott Kelly’s stint on the ISS, which ends tomorrow, is helping us answer some critical questions—including what weightlessness does to our…

We're Entering a Golden Age of Space Tourism Propaganda [Updated]

Whether they’re selling tickets to orbit or making sure the science funding keeps flowing, rocket companies and space agencies alike have a vested interest in getting the public jazzed about the cosmic beyond. So it’s no surprise that we’re now entering a golden age of space tourism propaganda—one that’s bringing back…

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