All coverage
SpaceX sends NASA craft on collision course with asteroid to test concept of protecting Earth in case of future threat
By William Harwood
Falcon 9 launches DART
By Jeff Foust
NASA Launches New Mission: Crash Into Asteroid, Defend Planet Earth (Published 2021)
By Joey Roulette
NASA launches mission to crash into a near-Earth asteroid to try to change its motion in space
By Ashley Strickland
NASA's DART spacecraft will smash into asteroid to test planetary defense tool
By Nell Greenfieldboyce