A breathtaking astronaut photo reveals El Salvador’s Lake Coatepeque—an ancient volcanic crater lake that sometimes ...

AtIndonesia’s Kawah Ijen volcano, a breathtaking blue glow emerges at night, setting it apart from most volcanoes where lava burns in shades of red. At Kawah Ijen, however, the molten sulfur flows ...

Methane gas produced by Hawaii's Kilauea volcano has caused rare blue flames to arise from cracks in the pavement. U.S. Geological Survey scientists were able to capture what they called "one of the ...

Helgi Hjorleifsson, a firefighter, is a leader in a national experiment to steer rivers of lava away from important sites. Some called it crazy, but it worked.

Hawaii Island's Kilauea volcano erupted on March 10, spewing rock fragments and closing nearby highways.

Kilauea volcano put on another spectacular show Friday night with lava fountaining in Halemaumau crater reaching new heights for the latest eruption, which began nearly 10 months ago. Scientists with ...