NASA launches spacecraft to kick an asteroid off course

In this image released by NASA, the SpaceX Falcon 9 rocket with the Double Asteroid Redirection Test, or DART, spacecraft onboard, is seen during sunrise, November 23, 2021, at Vandenberg Space Force Base in California. 

NASA is preparing a mission to deliberately smash a spacecraft into an asteroid -- a test run should humanity ever need to stop a giant space rock from wiping out life on Earth.


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