Test a new spacecraft material :: NASA's The Space Place - 0 views
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valerie taylor on 04 May 12"Being in space is not at all like being on Earth. It's usually very hot or very cold. There's no air. There's very little gravity. And the radiation is terrible! Suppose you are a very smart spacecraft engineer. You have invented a new material to use for the fuel tanks on the spacecraft. But before you send your new material into the harsh environment of space, you must test it on Earth in a space-like situation. "