Geothermal energy is heat that comes from the ground. The Earth's core is made of solid iron, and as it goes through its ...

"Do people think Yellowstone is a zoo?" Video captures tourists pressing their luck with massive wild animal at Yellowstone ...

The comedian’s style is still confrontational and opinionated—but now his subjects are different.

Photos of the incident show the man casually walking across the park's delicate protected bacterial mats to collect fallen ...

"The brain-eating amoeba would starve on that guy." Visitor sparks backlash after drinking thermal water straight from ...