The James Webb Space Telescope reveals active volcanoes on Io in unprecedented detail thanks to an innovative technique.

Lava flowing from Piton de la Fournaise on France's Réunion Island reached the Indian Ocean for the first time in 19 years. Videos captured the lava flows spilling over the cliff. The volcano began ...

Helgi Hjorleifsson, a firefighter, is a leader in a national experiment to steer rivers of lava away from important sites.

The eruptions at Kilauea prompted closures at a national park and part of a highway because of falling glassy volcanic fragments, including ash.

Hawaii's Kīlauea volcano eruption sent lava 1,000 feet into the air and forced officials to close parts of the national park.

Kilauea volcano erupted Tuesday on Hawaii's Big Island, shooting lava fountains up to 1,000 feet high and sending ash and volcanic debris across nearby communities.

The U.S. Geological Survey said episode 43 of the ongoing eruption at Kilauea volcano ended Tuesday evening after nine hours of continuous fountaining that blanketed the area with ash and tephra. The ...

One of the most deadly and dangerous volcano hazards isn’t lava. Mudflows called lahars can come without clear warning.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The world’s largest acidic geyser is erupting for the first time ...

Stunning social media videos erupted from the northern coast of Colombia on Feb. 25, when a mud volcano exploded, shooting flames high into the sky and prompting evacuations, local officials reported.

When tens of thousands of earthquakes shook Santorini, the cause wasn’t just shifting tectonic plates—it was rising magma. Scientists tracked about 300 million cubic meters of molten rock pushing up ...

Ciara Wanket drilling for sedaDNA samples in Canada’s Yukon territory. This ash layer from the volcano eruption she studied is visible as a pale stripe in the dark permafrost sediment. For the first ...