Asteroids

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.

In the glare of the sun, an unknown number of near-Earth asteroids move on unseen orbits. A new generation of space telescopes could be our best defense against potential disaster.

The events of 2003 changed the direction of human space exploration — both in our timeline and that of the alternate history series "For All Mankind." The fourth season picks up in 2003.

Some companies hope to one day search for deposits that are literally out of this world — on asteroids.

Scientists have predicted for a long time that elements with around 164 protons could have a relatively long half-life, or even be stable.

Asteroid Dinkinesh is not only a binary, but its satellite is itself a "contact binary" consisting of two space rocks touching one another.