Asteroids

Some parts of the dwarf planet Ceres harbored pockets of near-surface water for millions of years in the recent past, a new study suggests.

Hard on the heels of the discovery of a potential massive impact crater deep under the Greenland ice sheet, scientists think they may have found yet another such structure nearby.

Despite what you may have heard, the Valentine’s Day sky won't provide a glimpse of our impending doom. (Unless you're a star-crossed lover, of course.)

Astronomers just found an asteroid that zips around the sun every 165 Earth days — the shortest year for any known asteroid.

A Japanese asteroid probe will snag samples of its target space rock just two weeks from now, if all goes according to plan.

'Oumuamua is long gone, but it's still leaving scientists guessing. A new explanation proposes that the strange object was a "monstrous fluffy dust aggregate" produced by a busted-up comet.

NASA's OSIRIS-REx mission is orbiting an asteroid closer than any spacecraft has ever orbited a body — and it shows in an incredible pair of photographs that the team released yesterday (Jan. 24).

See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in December 2018.

See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in November 2018.

See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in October 2018.

See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in September 2018.

See amazing images of the night sky and cosmos in Space.com's gallery of cosmic images posted in August 2018.

Asteroid impacts have a bad reputation here on Earth — it's the dinosaurs' signature public relations victory — but it's the moon that really bears the scars of living in our messy neighborhood.

Half a century after the first manned space flight, space travel may be about to enter the age of steam.

Two little cubesats will fly with a planned European asteroid mission to get some extra space-rock studies done.

The Hayabusa2 probe will swoop down to the 3,000-foot-wide (900 meters) asteroid Ryugu's surface for the first time during the week of Feb. 18.