On Oct. 29, 1991, NASA's Galileo spacecraft flew past the asteroid Gaspra at about 18,000 mph and returned close-up images of the small rocky body.
NASA's Galileo spacecraft snaps photos of asteroid Gaspra in 1991 flyby
On Oct. 29, 1991, NASA's Galileo spacecraft flew past the asteroid Gaspra at about 18,000 mph and returned close-up images of the small rocky body.
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