Asteroids — Everything you need to know

After 10 months flying in space, NASA’s planetary defense technology, DART, crashed into an asteroid and changed its route. DART’s impact with the asteroid Dimorphos demonstrates a viable mitigation technique for protecting the planet from an Earth-bound asteroid or comet.

“At its core, DART represents an unprecedented success for planetary defense, but it is also a mission of unity with a real benefit for all humanity,” — NASA Admin