Researchers have used an underwater robot and a 360-degree camera to capture underwater images of a lava delta forming as a result of the La Palma volcanic eruption. In the video, which has been ...

Sometimes, a hole in the ground is just a hole. Other times, it’s a portal to an underground cave spanning miles in width and length. You don’t really know what’s inside unless you dive into the void.

The Columbia Basin has been shaped by forces of unimaginable power. Lava flows, near mile-thick glaciers and ice age floods layered and carved up this landscape. The field evidence of these cataclysms ...

The pumice plain between Mount St. Helens and Spirit Lake seethes with steam and superheated gases on May 19, 1980. LONGVIEW — New research on the cataclysmic 1980 Mount St. Helens eruption describes ...

New research on the 1980 Mount St. Helens eruption describes how and when the blast may have changed its shape and speed based on hardened lava collected at the site. The research also sheds new light ...

Jupiter's super-volcanic moon boasts grand, meandering dunes created not by wind but by lava flows beneath the moon's surface, a new study shows. Io is Jupiter's third-largest moon and the innermost ...

A group of researchers spent 15 years studying the unique microbial ecosystems within Hawaii’s lava tubes, geothermal caves and fumaroles, stinky sulfurous openings in the Earth’s crust near volcanoes ...