NASA's Swift Gamma-Ray Burst Mission
NASA's Swift and Hubble Probe Asteroid Collision Debris
28 Apr 2011, 00:00 UTC
Late last year, astronomers noticed an asteroid named Scheila had unexpectedly brightened, and it was sporting short-lived plumes. Data from NASA's Swift satellite and Hubble Space Telescope showed these changes likely occurred after Scheila was struck by a much smaller asteroid.
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