Killer asteroids on a crash course with Earth aren’t just for imaginative sci-fi movies. NASA recognizes rogue asteroids as a legitimate concern, so it’s developing a mission called the Double Asteroid Redirection Test (DART).

By Amanda Kooser CNET 7-5-17

The space agency on Friday announced that DART is moving from concept development into a preliminary design phase and released a video showing how it might work.

DART is about testing out what NASA calls “the kinetic impactor technique.” This means smashing a spacecraft into an asteroid to redirect it to a safer path….

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