COLLEGE PARK, Md. — Asteroids with moons, which scientists call binary asteroids, are common in the solar system. A longstanding question has been how the majority of such moons are formed. In this ...
The inner solar system spins much more slowly than the laws of modern physics predict, and a new study may help to explain why. A thin disk of gas and dust — known as an accretion disk — spirals ...
A newly spotted space rock has just shattered the speed record for large asteroids, spinning so quickly that by all ...