The transition from the towering heights of the volcano down onto the flat lava plain at the base of the scarp can be easily seen in the color-coded topography image. Olympus Mons flank topography ...

Lava from Kilauea is about halfway to the ocean on a coastal plain after going over the Pulama pali last week. The Hawaiian Volcano Observatory released new video and photos of the lava flow taken ...

Find the complete program transcript, including credits, for the NOVA program Volcano Under the City originally broadcast on PBS on November 1, 2005.

It eventually subsided into a vast lava plain — the Columbia Plateau. This basalt forms the parent material across the Northwest, and over time it weathers and becomes soil.

Exhausted and footsore, we made our painstaking way back across the lava plain and up the cliff to watch the light show. Thesiger often wrote about starting his treks at 5 a.m., ...

The evidence is hiding in plain sight. What we see as Isle Royale and the Keweenaw Peninsula is actually part of the one of the largest known lava flows on Earth. A map of the different forms of ...

"For 2 billion years, there's been sort of a steady plume of magma in one location on the surface of Mars," study co-author Mark Caffee of Purdue University confirms in a statement. "We don't have ...

On its third swing past Mercury, NASA’s Mercury Messenger spacecraft discovered an unexpectedly young lava plain, rapid rufflings of the planet’s weak magnetic field and an unanticipated dance ...

BEIJING, June 17 (Reuters) - Chinese scientists have found signs of water in samples retrieved by China from a lava plain on the moon, bringing them closer to understanding its origin there - a ...

Lava flows from Puu Oo vent are spreading over the coastal plain in Kalapana and over the weekend entered the Hawaii Volcanoes National Park. But the flows are still about a half-mile from the ocean.