NASA spacecraft to test asteroid defence concept
![An artist's impression of the DART spacecraft about to hit the asteroid](https://images.sbs.com.au/dims4/default/3b7f4df/2147483647/strip/true/crop/1691x951+51+0/resize/1280x720!/quality/90/?url=http%3A%2F%2Fsbs-au-brightspot.s3.amazonaws.com%2Fdrupal%2Fnews%2Fpublic%2Fpodcast_images%2Fan_artists_impression_of_the_dart_spacecraft_about_to_hit_the_asteroid_supplied-nasa.jpg&imwidth=1280)
An artist's impression of the DART spacecraft about to hit the asteroid Source: Supplied-NASA
NASA's mission to smash a spacecraft into an asteroid to test if it can be knocked off course is speeding ahead.
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