The time has come. We're going to smash a spacecraft into an asteroid.
The asteroid is Didymos B, the smaller of the two objects in the Didymos binary asteroid system. The spacecraft is NASA's Double Asteroid Redirection Test (DART). The reason: to test whether a spacecraft impact can deflect an asteroid's trajectory, as a means to protect Earth from rogue space rocks.

NEWS SOURCE:- https://www.sciencealert.com/we-re-going-to-smash-a-spacecraft-into-an-asteroid-to-test-our-planetary-defences

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