https://www.vice.com/en_us/article/n7z4z7/watch-the-spectacular-moment-nasa-straight-up-punched-an-asteroid-in-space-dart

A space probe deliberately crashed into an asteroid a little after 7 p.m. ET on Monday, marking the first time in history that humanity has moved the trajectory of another celestial body.  

NASA’s Double Asteroid Redirection Test (DART) slammed into a small space rock called Dimorphos right on schedule, about ten months after it launched from Earth. The mission is pioneering a planetary defense strategy that could ward off dangerous asteroids in the future, though it’s important to note that neither Dimorphos nor the larger asteroid it orbits—Didymos—poses any present or future threat to Earth.