The magma represents a remnant of the composition of early Earth -- before the crust separated from the mantle as Earth cooled.
Scientists have found evidence of volcanoes on the far side of the moon.
The massive methane release led to an increase in atmospheric temperature around the globe.
A dozen massive peaks, some active, are discovered in a novel scan of the Antarctic ocean floor.
Analysis shows that People emit more greenhouse gases in three days than all the world's volcanoes do in a year.
A plume of ash from an erupting volcano in Iceland is being blown south towards Britain and could reach the airspace over mainland Europe later in the week.
The active Grimsvoetn volcano began erupting Saturday, spewing a 20 kilometer-high column of smoke.
The plume that fuels Yellowstone's famous geysers and hot springs appears to be larger than once thought.
An accident of nature could lead to more energy efficient geothermal power plants.
The eruption of Mount Vesuvius broke apart a tomb inscription for a husband and wife. Now the names have been joined again.