A 2017 astronaut photo shows the islands of Dek and Daga lurking in the murky, algae-infested waters of Ethiopia's Lake Tana.
Volcanoes are nature's most dramatic showpieces, and while their eruptions can be awe-inspiring, they also pose serious ...
Rapid uplifting near the 13,000-foot-tall summit of Taftan shows that this long-dormant volcano is more geologically active ...
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