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 ...

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 ...

Humanity lives on a thin edge: we barely scratch beneath the crust of our planet and routinely travel only within less than ...

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