Evidence that rocky planets beyond Jupiter formed as rapidly, and at the same time, as the inner planets could transform our understanding of how planets take shape — not only in our solar system, but ...

Earth is unique in the Solar System for having an abundant supply of water, making it the only known planet with vast oceans, ...

In a recent episode of SETI Live, Communications Specialist Beth Johnson spoke with Ian Pamerleau, lead author of a new study ...

The space rock came as close as within 4.15 million miles from our planet, according to NASA's Jet Propulsion Laboratory.

There are currently no known asteroids on an impact course with the planet. Still, scientists are keeping a watchful eye on nearly 40,000 large objects out there with the hope of avoiding the fate of ...

An asteroid goes missing, and it’s not what you’d expect… What secrets are drifting in the belt?

Vesta, thought to be the second-largest asteroid in the solar system, could be a piece of an ancient, unknown planet, a new study hints.

NASA's Lucy spacecraft has beamed back pictures from its latest asteroid flyby, revealing a long, lumpy, odd-shaped space rock.

Where do meteorites of different type come from? In a review paper, astronomers trace the impact orbit of observed meteorite falls to several previously unidentified source regions in the asteroid ...

The main belt asteroid Donaldjohanson is now in sight as the Discovery Program mission prepares for a flyby of the object in April.

There are so many asteroids orbiting between Mars and Jupiter — millions of them — that this region is known as the main asteroid belt. They sometimes get pushed out of the belt and can end up ...

In a paper published in Nature on Dec. 9, they report the discovery of 138 asteroids smaller than 328 feet across (100 meters) — the smallest ever detected in the main asteroid belt.