Spacecraft launched on mission to smack space rock – BBC News




A spacecraft has launched on a mission to test technology that could one day tip a dangerous asteroid off course. Nasa's Dart mission wants to see how difficult it would be to stop a huge space rock from colliding with Earth The spacecraft will crash into an object called Dimorphos to see how much its speed and path can be altered. If a chunk of cosmic debris measuring a few hundred metres across were to collide with our planet, it could unleash continent-wide devastation. A Falcon 9 rocket carrying the Dart spacecraft blasted off at 06:20 GMT on Wednesday from Vandenberg Space Force Base in California. Please subscribe HERE http://bit.ly/1rbfUog #BBCNews #Nasa #Asteroid

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