Venus, long-thought dormant, shows signs of volcanic activity

Two coronae, ring-like structures formed when hot material from deep inside the planet rises through the mantle and erupts through the crust, are observed on the surface of Venus in a 3-D rendition

Scientists have identified 37 volcanic structures on Venus that appear to be recently active — and probably still are today — painting the picture of a geologically dynamic planet and not a dormant world as long thought. The research focused on ring-like structures called coronae, caused by an upwelling of hot rock from deep within the planet’s interior, and provided compelling evidence of widespread recent tectonic and magma activity on Venus’s surface, researchers said on Monday. The research has been published in the journal Nature Geoscience.