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Mission training for astronauts has
always been rigorous. Testing our

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astronauts limits, abilities and
knowledge is still an integral part of

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readying them for the tasks they'll
carry out in space. In the Apollo era

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there were so many more unknowns.
Those pioneers used the best of what was

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available to them at that time and
invented the rest. Safety was and is a

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top concern. But we push boundaries at
NASA. At great risk. Throughout NASA's

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history technology has fueled the
evolution of our training programs.

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Virtual reality allows our astronauts
the benefit of safely repeating mission

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specific events and activities. Although
some things we do don't look that