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 was putting on a spectacular show Tuesday evening, with its latest eruptive episode producing arching bands of red lava higher than some skyscrapers ...

The world's largest acidic geyser has begun erupting again in Yellowstone after slumbering for over five years, the national ...

Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed ...

The ground at Yellowstone does not always move quietly, and sometimes it waits for years before suddenly coming back to life.

Located in the Back Basin of the Norris Geyser Basin, the geyser unexpectedly erupted on Feb. 7 after nearly six years of ...

The eruptions began in early February. It’s unknown whether the eruptions will continue into the busy summer tourism season, ...

How big can volcanic eruptions get on Jupiter’s moon, Io? This is what a recent study published in the Journal of Geophysical Research: Planets hopes to address as an international team of scientists ...

The Echinus Geyser had been silent for the last six years, and it is unknown whether the eruptions will continue into the ...

A new study shows eruptions and wildfires altered the upper atmosphere, yet recent surface warming points elsewhere.