National Science Environment The Mechanics Behind Yellowstone's Old Faithful 5:09pm October 12, 2017 News U.S. Around the Nation Research News Science Environment Share URL copied to clipboard! Copyright 2017 NPR. To see more, visit http://www.npr.org/. 300x250 Ad More All Things Considered National You can sword-fight at this club. But no politics allowed Arts National In 'Wicked: Part I', Cynthia Erivo defies gravity — and convention — as Elphaba 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate