On Monday, a million-dollar spacecraft struck an asteroid the size of a football stadium head-on.
6.8 million miles from Earth, NASA's probe successfully collided with the asteroid Dimorphos.
The Dart (Double Asteroid Redirection Test) mission was the first effort by humans to move another celestial body.
At 7.14 p.m. EDT, the spacecraft struck the asteroid at 15,000 mph.
Scientists from NASA and Johns Hopkins University embraced after learning that Dart successfully struck Dimorphos.
The head of NASA's planetary science division, Lori Glaze, declared it to be the beginning of a "new age of humanity" shortly after impact.