If you want to know about Hera, a satellite hurtling through deep space toward two asteroids, you can just ask it. “My mission is to study the aftermath of NASA’s DART impact on the asteroid Dimorphos ...

According to NASA’s Center for NEO Studies, there are over 36,000 Near Earth Asteroids discovered. The Tunguska asteroid event in Siberia, Russian Federation, on 30 June 1908, was the Earth's ...