Multiple earthquakes are rattling Santorini, a volcanic island in Greece, prompting authorities to dispatch rescuers with ...

Below Mount Jefferson and McKenzie Pass is a massive storehouse of water three times the size of Lake Mead, say Oregon ...

A stunning composite image, made up of three years' worth of satellite photos, shows the ancient lava of Libya's Haruj ...

Yellowstone's magma system shows new activity, with the northeast sector possibly hosting future volcanic activity.

North of the California border, scientists just found 21 trillion gallons of water hiding in the cracks of volcanic rock.

The chemical makeup of mineral inclusions preserved in impact glass hints at the site of a missing impact crater.

NASA’s Juno mission found Io’s biggest volcanic eruption ever. The explosion was stronger than all Earth’s power plants ...

Firefighters said the canyon was filled with flames Friday night. Then, when the rain came down on Saturday and Sunday, it ...

The study of ancient lava formations on Mars is the most complete to date from a series of observations conducted on the ...