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Scientists have long wondered where the Kinnekulle tephra came from. It now appears this ancient giant was the source.
Visitors videotaped a tree-lined floating island about the size of two NFL football fields in British Columbia’s Williston Reservoir. Then it vanished.
This unusual quake took tens of millions of people by surprise, and now we know where it came from.
An ice island the size of Manhattan broke away from one of Greenland's largest glaciers.
“A storm in the sky can help us see underground.”
