The Science Behind What Makes Yellowstone's Geysers Erupt

August 23, 2016: The Science Behind What Makes Yellowstone's Geysers Erupt Here & Now interviews Dr. Bob Smith, coordinating scientist at the Yellowstone Volcano Observatory and emeritus professor of geophysics at the University of Utah, and Rebecca Roland, park ranger at Yellowstone National Park. They discuss geyser eruptions and geyser basins in Yellowstone. 11 minutes.