Colossal volcanic eruptions like the kind that may have obliterated the dinosaurs more than 65 million years ago are caused by mantle plumes that rise from shifting underground mountains deep within ...

Researchers have found bizarre, enormous structures hidden deep beneath the remains of an ancient Martian ocean. These dense structures may have been formed by ancient volcanic activity, or by space ...

Researchers have identified 138 candidate subglacial volcanoes hidden beneath the West Antarctic Ice Sheet, 91 of which had never been recognized before, raising serious questions about what happens ...

A new study identified 37 recently active volcanic structures on Venus. The study provides some of the best evidence yet that Venus is still a geologically active planet. A research paper on the work, ...