A pair of planetary scientists simulated how our solar system might have evolved if it had a super-Earth orbiting where the ...

The essential ingredient for life, water, appeared on both planets around 4.4 billion years ago, new research indicates.

Water is ubiquitous on Earth—about 70% of Earth's surface is covered by the stuff. Water is in the air, on the surface and ...

This week, the night sky will dazzle stargazers with a rare cosmic alignment as Mars and the Moon come together for a ...

Scientists decoded Mars' radiation spectrum during solar eruptions, aiding future astronaut safety on Mars missions.

Computer simulations suggest that Mars' puzzling moons, Phobos and Deimos, may have been formed from debris created when a large asteroid wandered dangerously close to the Red Planet.

Each Monday, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes ...

The earliest known direct evidence of hot water activity on Mars has been found, pointing to the possibility that the planet ...

Using a mix of China's Zhurong Mars rover's onboard instruments, scientists identified several intriguing water-related features.

Astronomers used NASA's TESS telescope to discover a young planet. The researchers suspect it could become a super-Earth ...