(Flickr / Howard Ignatius)
Yellowstone National Park may be best known for its Old Faithful geyser and its stunning wildlife, but the national park also sits atop a supervolcano that simmers just under the surface.
You can see evidence of the volcano’s active state in the park’s famous hydrothermal activity, including Old Faithful, which shoots water every few hours.
Because the area’s still active, researchers have been trying to determine when it might erupt again. And according to new research presented at the International…