Nearly 600 years ago, a massive volcanic eruption sent clouds of sulfurous gas and ash high into the atmosphere. The blast ...

Buried deep in Greenland's ice sheet lies a puzzling chemical signature that has sparked intense scientific debate.

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, ...

Experience Cotopaxi Volcano, one of the world’s highest active volcanoes and a defining landmark of Ecuador’s Andean ...

New research suggests that dinosaur populations were thriving in North America before the asteroid impact 66 million years ...

Witness the raw power of the Earth in this breathtaking 4K UHD cinematic footage. Bright molten lava flows through dark ...

Scientists have long debated whether dinosaurs were in decline before an asteroid smacked the Earth 66 million years ago, causing mass extinction. New research suggests dinosaur populations were still ...

Episode 34 of the ongoing Halemaumau eruption wrapped up abruptly just after 7 a.m. today, only six hours after fountains first roared to life inside Kilauea’s summit crater. The U.S. Geological ...

The eclectic collection of more than 7,600 vintage 16 mm classroom films represents an unsung genre that offered engaging new ...