Asteroids

A "potentially hazardous" space rock the size of a football stadium is about to reach its closest point to our planet for more than 100 years, and it won't get this close to us again for centuries more.

Asteroid 2024 BJ, which astronomers detected earlier this month, will be live-streamed as it zooms within 220,000 miles of Earth, or closer to us than the average distance to the moon.

Samples of the asteroid Ryugu, returned to Earth by the Hayabusa2 mission, carry evidence that organic molecules important to life were once delivered to Earth by comets.

NASA's Scout impact-assessment system told astronomers where and when the tiny space rock would crash on Sunday morning (Jan. 21).

For only the eighth time in history, scientists detected an asteroid before it made its fiery appearance over Earth. The tiny fireball exploded near Berlin early on Jan. 21.

The OSIRIS-REx sampling mission, a planetary defense prototype named DART and a spacecraft's ambitious journey to a metal world are just some of the highlights

After more than a decade of hunting for asteroids and comets, the days of NASA's NEOWISE mission are officially numbered, thanks to our increasingly active sun.

Scientists have discovered that many asteroids have the consistency of piles of rubble. Knowing this, how could we defend Earth against one of these asteroids?

Betelgeuse, one of the most recognizable stars in the night sky, will disappear for several seconds in a rare asteroid occultation on the evening of Dec. 11.

NASA's revitalized OSIRIS-REx probe has begun tucking in one of its solar panels to protect itself from the sun.