Hubble Space Telescope sees unexpected twin ‘tails’ from impacted asteroid


A week or two after a NASA spacecraft slammed into an asteroid, scientists have spotted something unexpected: The space rock has grown two tails.

The Double Asteroid Redirection Test (DART) mission walloped a small asteroid called Dimorphos on Sept. 26 to test a potential technique for protecting Earth from an asteroid on a collision course with our planet. Within two days, radiation pressure from the sun pushed the impact debris into a tail, like that of a comet, some 6,000 miles (10,000 kilometers) long.


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