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space travel
Space
Getting to sleep in space is hard – and not exactly restful for the mind and body
Technology
A self-healing plastic for astronauts
Space
Is a trip to Mars ethical?
Space
A gravity machine on a spaceship to Mars
Space
The end of space exploration?
Space
Space radiation might affect how astronauts think
Space
Packing light for Mars
Space
Space travel is bad for your health
Space
Why go to space?
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