NASA’s DART asteroid impact hurled 2 million pounds of rock into space

The massive tail, created by the collision of a spacecraft and an asteroid earlier this year, is revealing important information about space rocks – and how to deal with such rocks that could one day threaten Earth.

NASA Double Asteroid Redirection Test (ARROW) mission hit a small space rock called Dimorphos in late September to prepare for the possibility that humans might one day try to distract you asteroid on a collision course with Earth. Within weeks of impact, the DART team announced that the impact was 32 minutes from Dimorphos’ orbit around its larger companion. Didymos – in the high range of the team’s prelaunch estimates. Scientists are now sharing additional findings on the impact during the American Geophysical Union’s annual conference, taking place this week in Chicago and online

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