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

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

Visitors at the national park in Montana were left horrified after a tourist wandered off the designated boardwalk and ...

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