Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles ...

For decades, volcanologists believed that the primary trigger for explosive eruptions was a drop in pressure as magma rises ...

Scientists have discovered that shear forces inside rising magma can create gas bubbles long before pressure drops occur. The ...

A volcano in northern Ethiopia erupted Sunday, marking its first known eruption in 12,000 years. The volcano, called Hayli ...

The volcanic ash cloud is made of tiny, sharp particles of rock, minerals and volcanic glass. The formation of the particles ...

A new study explains why even gas-rich, supposedly explosive volcanoes sometimes erupt quietly instead of blowing apart.

The physics of java and lava are actually quite similar, at least when it comes to bubbles, according to a surprising study.

An international team of researchers including a scientist from ETH has shown that friction in magma leads to the formation ...

An immense volcanic ash cloud from Ethiopia's Hayli Gubbi eruption is heading towards India, potentially causing hazy skies ...

An odd-looking cloud formation over Mount Rainier drew curious eyes from social media users Wednesday as the volcano looked as if it was giving a warning before some sort of event, but experts quickly ...

A large formation of granite discovered below the lunar surface likely was formed from the cooling of molten lava that fed a volcano or volcanoes that erupted early in the Moon's history -- as long as ...