Hawaii's Kilauea volcano produces significant volcanic gas during the latest eruption. Officials are monitoring air quality ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, ...

All that volcanic activity means natural hot springs are prevalent within and outside the park. Two favorites include Tabacón ...

Rivers of lava flowed down several vents of the Halemaʻumaʻu crater on Hawaii's Kilauea volcano overnight Monday — the latest ...

Find the answer for Europe's most active volcano from the people who brought you the USA TODAY Daily Crossword Puzzle.

The ongoing eruption at Kilauea is drawing what one tourism executive calls a "lava-chaser" effect, boosting business ...

In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world's most active and whose eruption could affect millions of people. Its mission: figure ...

The St. Vincent and the Grenadines government says it will boost the surveillance and monitoring of the La Soufriere volcano which will include new ...

Red glowing lava was visible inside the Kilauea Volcano on the Big Island of Hawaii late Sunday night and early Monday ...

Red glowing lava was visible inside the Kilauea Volcano on the Big Island of Hawaii late Sunday night and early Monday ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...