Add Yahoo as a preferred source to see more of our stories on Google. A long-inactive volcano in northern Ethiopia unexpectedly erupted on Sunday, sending up plumes of volcanic ash and dust, which ...

A volcano in Ethiopia erupted Monday, spewing ash and smoke that's making its way to India. Nov. 24 (UPI) --A volcano in Ethiopia erupted Sunday morning for the first time in at least 12,000 years.

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

Since the 1970s, planetary geologists have known that volcanic features cover large swaths of Mars. Early Mariner 9 images ...