NASA has spotted what could only be described as a "space volcano" erupting in a long-dormant galaxy, reversing a theory that ...

Social media videos showed people running into the streets as bright orange flames and smoke spewed into the sky.

A mud volcano erupted in San Juan de Urabá, Antioquia, killing livestock and damaging roads. Authorities have set up a safety ...

A supermassive black hole in J1007+3540 has roared back to life after 100 million years, firing jets across nearly one million light years and revealing a turbulent battle inside a galaxy cluster.

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

When individuals hear volcanoes, they tend to envision blazing eruptions blasting into the air. However, volcanoes can also collapse sideways, with their sides, or flanks, collapsing. Such a collapse ...