An asteroid that fell to Earth in 2022 and exploded in a stunning green fireball above Canada was the smallest space rock ever properly measured, a new study suggests. The diminutive asteroid, which was only discovered a few hours before it blew up, was ...

Three meteor showers and a glowing supermoon will make November a standout month for skywatchers, along with the return of one of the season’s most recognizable constellations.

Earth is expected to pass through the debris trail of a broken comet on Monday night and early Tuesday morning. It could result in a brand new meteor shower. Night sky watchers in North America have the best chance of seeing the tau Herculid shower, with ...

On Sept. 26, 2022, NASA's Double Asteroid Redirection Test craft smashed into its target, the hazardous asteroid Dimorphos, and raised hopes that a space rock could be deflected from a collision course with Earth.