Magma beneath Yellowstone Park much bigger than thought

The molten rock that lies beneath the Yellowstone National Park is much larger than previously thought, according to a new study.

New study suggests supervolcanoes erupted on ancient Mars

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.

Supervolcano forming under Pacific could wipe out life

Life on Earth could be facing threat from a catastrophic "supervolcano" which seismologists believe is due to erupt in 200 million years` time.

No sign of 2012 supervolcanoes, NASA says

Scientist at NASA’s Goddard Space Flight Centre have found no evidence to support claims that there could be volcano supereruptions in 2012.