Space agency NASA has revealed its plan to stop massive asteroids devastating Earth by redirecting them with a "historic" new defence technique.
NASA hopes to stop the threat of asteroids too large to burn up in earth's atmosphere and will test the new system in 2022.
Double Asteroid Redirection Test (DART) will be directed at asteroid system Didymos and aims to completely shift its orbit, The Sun reported.
“The kinetic impact technique works by changing the speed of a threatening asteroid by a small fraction of its total velocity," NASA said in a statement.
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“But by doing it well before the predicted impact so that this small nudge will add up over time to a big shift of the asteroid’s path away from Earth.”
Didymos is set to be close enough to earth by 2022 and the space agency will launch a small spacecraft toward it in a hope to change its flight path.
Newsbreak - July 3