Another plane-sized space rock, known as the "2025 DY5" and measuring about 92 feet across, will zip past our planet this ...

The results of Hera's fly-by could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...

A weak magnetic field likely attracted matter inward, contributing to the formation of the outer planetary bodies, from ...

More than 38,000 asteroids are known to be in Earth's vicinity, including 973 "planet killers" of more than half a mile in ...

A White House science advisor recently war-gamed with space agency heads worldwide to devise a planet-saving defense to an ...

The rate of stars going supernova near Earth appears to match two mass extinctions -- 372 million years ago and 445 million ...

"The universe is filled with a range of three-body systems, including the closest stars to Earth, the Alpha Centauri star ...

The Hera probe has swung around Mars, using the planet’s gravitational pull to fling itself toward its asteroid target. During its brief rendezvous with the Red Planet, Hera caught a glimpse of the ...

While the car-sized spacecraft flew around the Mars system, flight controllers on Earth temporarily lost communication with ...

A UVA professor is part of the study of Trojan asteroids, presumed remnants of the early solar system that share Jupiter’s ...

The number of known moons in our Solar System has been rising for centuries, but astronomers say it has probably peaked – for ...