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The Mercury 7 are the first group of NASA's astronauts. Back row: Alan Shepard, Gus Grissom, Gordon Cooper; front row: Wally Schirra, Deke Slayton, John Glenn, Scott Carpenter in 1960. | Wikimedia Commons
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Why 'Space Madness' Fears Haunted NASA's Past

The opening of spaceflight to private citizens may revive madness concerns.

Published On 04/16/2012
3:00 AM EDT