EPISODE · Feb 25, 2011 · 13 MIN
NSN | Space Dangers
from NOVA Vodcast | PBS · host WGBH Science Unit
A trip to Mars and back could take two to three years. Can humans survive the journey, fraught with deadly meteoroids, bone and muscle wasting, and perilous levels of radiation? Scientists are developing new ways to keep astronauts alive, using novel meteoroid-proof materials, artificial gravity, and exercise. But will they be enough?
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NSN | Space Dangers
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