NASA will use a spacecraft later this month to test a planetary-defense method that could one day save Earth.
The Double Asteroid Redirect Test spacecraft, otherwise known as DART, will be used as a battering ram to crash into an asteroid not far from Earth on Sept. 26. The mission is an international collaboration to protect the globe from future asteroid impacts.
In November 2021, a SpaceX Falcon 9 rocket launched with DART from the Vandenberg Air Force Base in California. NASA says that after the final maneuver on Sept. 25, approximately 24 hours before impact, the navigation team will know the position of Dimorphos within 2 kilometers. From there, DART will be on its own to autonomously guide itself to collision with the out-of-this-world space rock.DART recently got its first look at Didymos, the double-asteroid system that includes its target, Dimorphos.
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