Cracks along a giant Martian volcano, possibly above a magma chamber, might be spewing magmatic gases into the atmosphere, ...

University of Cambridge astronomers have ruled out a longstanding theory.

Earth has a new moon, but don’t get too attached. Earth has a new moon, but don’t get too attached. Our planet’s gravity ...

It's a dizzyingly busy time for scientists searching for life on distant planets. To date, astronomers have cataloged more than 6,000 planets beyond our solar system and are searching the atmospheres ...

Archived observations appear to show a moving object in the far-distant outer solar system, but its reality is unclear ...

A powerful solar storm in May 2024 breached Earth's supposedly impenetrable radiation barrier, triggering a more than 5,000-fold increase in highly energetic electrons, a new study has found.

It’s called the Great Unconformity, and it’s a gap in the geologic record,” says Nicolas Flament, a geoscientist at the ...

Learn about a faraway cosmic feature that looks like a cat's tail made of "fluffy" dust grains that may have scattered after ...

The tiny space rock, estimated to be just 3 to 6 feet across, has been temporarily captured by Earth’s gravity and is ...

Earth has gained a second tiny moon after a small space rock was captured by our planet's gravity. The object, known as 2026 ...

Organic specks in primitive meteorites carry an oxygen signature set before their asteroids formed, likely in the cold outer ...

Everyone has probably looked up at the night sky and wondered, 'Is there someone out there somewhere in this universe?' It's ...