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 ...

With monstrous plumes bursting from the water and shimmery streaks of electric light, Devon Massyn said it was one of the craziest things he has ever experienced.

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 ...

Ethiopia’s Hayli Gubbi volcano had been quiet for the past 12,000 years. For all these centuries, it sat dormant with its hollow, crater-shaped mouth etched into the Danakil Depression, one of the ...

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 ...