Mar 6 1991
From The Space Library
NASA engineers studied a tiny crack on the hinge mechanism of Shuttle Atlantis but planned to go ahead with a launch in April. Atlantis was scheduled to ferry into orbit the Gamma Ray Observatory, a Hubble Space Telescope-class astronomical instrument built to study extremely high energy radiation from deep space. (NASA Release, "STS-37 Mission Advisory"; UPI, Mar 6/91)
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