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How astronauts train for a worst-case spacewalk

Astronauts must be some of the bravest people on (or off) the planet. Every day they perform their jobs, they face extreme risk in the most hostile environment imaginable: outer space. If you’ve ever seen the movie “Gravity,” you’ll know how harsh survival can be outside of Earth. Watch how NASA prepares trainee astronauts for space disasters using VR and robotics. It’s out of this world!

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