News tagged with volcano

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Dating our galaxy's dormant volcano

(Phys.org) —A dormant volcano—a supermassive black hole—lies at the heart of our galaxy. Fresh evidence suggests that it last erupted two million years ago.

Sep 23, 2013
4.7 / 5 (24) 5 | with audio podcast

A hitchhiker's guide to pumice

A floating raft of pumice created by an underwater volcanic eruption near New Zealand, and teeming with marine hitchhikers, has been spotted in the northern Great Barrier Reef.

Sep 02, 2013
5 / 5 (2) 0