The molten rock that lies beneath the Yellowstone National Park is much larger than previously thought, according to a new study.
New images of the Red planet released by NASA suggest possible ancient supervolcanoes on Mars. The supervolcanoes are similar to the caldera that sits under Yellowstone National Park.
Life on Earth could be facing threat from a catastrophic "supervolcano" which seismologists believe is due to erupt in 200 million years` time.
Scientist at NASA’s Goddard Space Flight Centre have found no evidence to support claims that there could be volcano supereruptions in 2012.
Day in Pics: 22nd December
Showbiz World - December 22, 2014
People Magazine Awards 2014