Find anything and everything you ever wanted to know about volcanoes at this U.S. Geological Survey site. Browse a photo glossary of volcano terms, review volcano fact sheets, watch video clips of ...

Humans are, as a species, hardwired to explore. We conquered the planet thanks to untold generations of people needing to see what lay over the next hill or around the next river bend and our ...

The recent eruption of the Tongan submarine volcano Hunga Tonga-Hunga Ha’apai culminated in an explosive blast on Jan. 15 that sent shock waves around the world. Punching a hole through the ...

MISSOULA -- As recently as 10,000 years ago, giant ground sloths the size of elephants, 20 feet long and weighing in at more than 6,000 pounds, roamed the southern United States and Central and South ...