MANILA, Philippines — Mayon Volcano in Bicol exhibited significant activity for the past 24 hours as it remained under Alert ...

Indonesia’s Mount Semeru volcano in East Java erupted early Saturday, sending scorching clouds and ash 6 kilometers (3.7 miles) from its crater, according to state-run media.

Volcanoes may look like simple mountains that erupted once and then fell silent, but in reality they are often the surface expression of complex processes happening deep underground. Magma can move, ...

There’s a particular kind of magic in standing on sand that feels like an entirely different world, with grains of volcanic ...

Scientists have uncovered evidence of a massive underground lava tube hidden beneath the surface of Venus, revealing a new layer of the planet’s volcanic history. By reexamining radar data from NASA’s ...

New orbital data reveal that the most recently active volcanic systems on Mars weren’t simple one-off blasts into space.

Research shows Mars volcanoes erupted as recently as 50 million years ago, with underground magma chambers that cooked for 9 million years.

NASA's Magellan orbiter launched from Florida in 1989 helped scientists discover a vast underground lava tube on Venus in a ...

A vast underground tunnel known as a lava tube, formed from ancient volcanic activity, was recently discovered lurking beneath Venus.

What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, ...

Scientists just found a massive lava tube beneath Venus. This discovery could change everything we know about the planet ...