Mountain building, also known as orogenesis, is a geological process that involves the formation and uplift of large, elevated landforms, known as mountains. The term "orogenesis" comes from Greek ...

An odd-looking cloud formation over Mount Rainier drew curious eyes from social media users Wednesday as the volcano looked as if it was giving a warning before some sort of event, but experts quickly ...

Mount Shasta presents a unique challenge that most other active volcanoes don't for USGS scientists. The only place to sample ...

The Olympus Mons volcano on Mars shares morphological similarities with active volcanic islands on Earth, suggesting that it formed when a vast ocean once occupied the planet's northern lowlands. A ...

A large formation of granite discovered below the lunar surface likely was formed from the cooling of molten lava that fed a volcano or volcanoes that erupted early in the Moon's history -- as long as ...

A volcano is an opening in the Earth's crust that allows molten rock, gases, and debris to escape from below the surface. The ...

Poços de Caldas, in the southern part of the state of Minas Gerais, Brazil, is built on one of the most unique geological ...