Unusual molten rock formations, nicknamed lava eggs, have appeared near an active volcano in Iceland. Some were recently spotted by a geologist, who explained to Reuters how the egg-shaped lobes ...

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 ...

Their huge size is peculiar and has forced scientists to throw out their pet theories on how planetary lava tunnels form.

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 ...

Fountains from the south vent at Kilauea's summit crater soared 1,300 feet (400 meters) into the air, the U.S. Geological ...

It is uncontroversial that lava tubes - underground tunnels carved out by molten rock – exist on Earth, the moon and Mars. Smaller planets with low gravity tend to form more cavernous tubes, in part ...

HONOLULU (AP) — Hawaii’s Kilauea volcano has been shooting lava from its summit crater about once a week since late last year, delighting residents, visitors and online viewers alike with a firehose ...

Of the over 5,000 known planets outside our solar system, one of the most dramatic is 55 Cancri e. Affectionately known as the “hell planet,” it orbits so close to its star that it reaches ...

Venus is often called Earth's "sister planet" because of their similarities in size, mass, and composition. Both are rocky ...