A massive hole in Siberia has grown from a small gully into a 3,000-foot-long frozen scar that keeps swallowing the tundra.

A hidden crater in South Korea may hold clues to one of the biggest turning points in Earth’s history: the rise of oxygen. Scientists discovered fossil-like stromatolites — layered structures built by ...

Dante’s vision of Hell may echo the physics of a massive asteroid strike, offering a new way to read the Inferno.

On the evening of May 20, skywatchers in the United States will witness a striking celestial display as the waxing crescent ...

Campi Flegrei, a volcanic caldera near Naples, is speeding toward a transition, a new study suggests, but there are still a ...

Ancient floods once ripped across Mars, carving the massive Shalbatana Vallis channel and reshaping the planet’s surface. New Mars Express images reveal a chaotic landscape of craters, lava, and ...

NASA’s Perseverance rover may have found some of the oldest rocks ever studied on Mars at an outcrop named "Arethusa." ...

Newly spotted asteroid 2026 JH2, which could be up to 115 feet wide, will fly past Earth closer than some satellites on ...

While some people want to go on vacation to experience a busy city, others look for quiet. These places offer a stillness ...

Blue sunsets, whirling dust devils, giant volcanoes, tiny moons, and marsquakes—there’s a lot to discover on Mars!