How Astronauts Train For Space When They're On Earth | The New Frontier | Spark
143Astronauts and Cosmonauts train and study for years to work and live aboard the International Space Station. We have seen countless hours of their activities live on television and in the media. With this wealth of experience and insight behind them, what do they think when they return to Earth? Without exception, these space farers can not wait to get back into space.
The tenuous envelope of gas surrounding our planet is an unbelievably complex machine that protects us from the vacuum of space, shelters us from harmful radiation, and allows us and the biosphere to breath; it is our atmosphere and we need to learn much more about it so we can better it.
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