At the bottom of a 500-foot deep cave lies a stunning discovery - a deep blue hole hidden from the world above. In this video ...

But the eruptions left behind a new thermal pool. Ice-blue in color, warm in temperature and a little larger than a backyard hot tub, the pool is the newest known feature to bubble up in Yellowstone’s ...

During the afternoon of July 14, the U.S. Geological Survey announced the discovery of a new geothermal pool in Yellowstone National Park’s Norris Geyser Basin.

Using machine learning, researchers found there have been over 86,000 hidden earthquakes beneath the Yellowstone Caldera ...

Rumors circulating on Facebook that Grizzly 399’s final offspring — dubbed “Spirit” by its late mother’s fans — is alive and ...