The Scorching Underground Plume That Feeds Yellowstone's Supervolcano…

Thanks to new measuring techniques, geophysicists have discovered that the underground plume that feeds Yellowstone's Supervolcano is much, much larger than we thought. What was once assumed to be an already large 150 miles long is now a gigantic 400 miles pool of molten rocks and hot briny water for the Volcano to… » 4/14/11 2:20pm 4/14/11 2:20pm