Only a few dozen of these short-lived binaries exist in the galaxy at a time, making the serendipitous find extremely ...

The first flight mission for planetary defense, NASA's Double Asteroid Redirection Test (DART) seeks to validate a method to ...

NASA has released new detailed images revealing a full-frame view of the peculiarly shaped asteroid Donaldjohanson.

Neither body posed a threat to Earth, but the binary asteroid system was close enough to Earth for the impact to be studied by observatories on the ground.

Yes, just like larger planets, asteroids can have moons, too! The fact that asteroids can have satellites at all came as something of a surprise. The first such “binary asteroid” was ...

New data about binary asteroids comes from ESA's Gaia mission, a space-based telescope which has spotted new potential moons around 350 asteroids.

The Didymos asteroid, and its tiny moon Dimorphos, are what’s known as a binary asteroid system. They were the perfect target for the DART mission, because the effects of the impact could be ...

Astronomers were in for a surprise when NASA’s Lucy mission flew by an asteroid named Dinkinesh in November and spotted a contact binary — two smaller space rocks that touch each other ...

Scientists may have learned the history of the tiny contact-binary moon orbiting asteroid 152830 Dinkinesh, which was the first cosmic stop for NASA's Lucy spacecraft. That moonlet may have spun ...