NASA’s DART Spacecraft Slams Into Asteroid in Effort to Alter Its Orbit

For the first time, NASA smashed a spacecraft into an asteroid in an attempt to knock a celestial body off course. Here's what it looked like:

The craft collided with the distant space rock, Dimorphos, at about 7:15 p.m. Monday.

The craft collided with the distant space rock, Dimorphos, at about 7:15 p.thanks to a , viewers on earth will be able to watch the first-ever planetary defense test in through a dedicated livestream.