The Midway Geyser Basin's Grand Prismatic Spring is the largest hot spring in Yellowstone and one of the largest hot springs in the world. Measuring approximately 370 feet in size and around 121 ...

For every Old Faithful and Grand Canyon of the Yellowstone, there's a host of other obscure places like The Gumper, Lactose ...

"Hot springs have injured or killed more people in Yellowstone than any other natural ... Wandering off-trail at Grand Prismatic also risks damaging the delicate bacterial mats that give the ...

Yellowstone is a great refuge not just for ... The colors of Grand Prismatic Spring come from thermophiles: microbes that thrive in scalding water. The green is chlorophyll they use to absorb ...

How the Grand Prismatic Spring Gets Its Kaleidoscopic Colors The beating heart of Yellowstone National Park is without a doubt the Grand Prismatic Spring—the largest hot spring in the U.S.

More than a third of Yellowstone, including Grand Prismatic Spring, sits within the caldera of a giant, ancient, yet still active volcano. Someday it will erupt again, catastrophically—but the ...

A new study highlights how life possibly evolved prior to and during the rise of Earth’s oxygenated atmosphere.

One volcanologist who has spent time studying the volcano said the devastation its eruption would cause would be "complete ...

By exploring Yellowstone's geothermal springs, scientists discovered the microbes that reveal how life adapted to harsh conditions billions of years ago.

This Yellowstone National Park one day itinerary will show you all the highlights that make it the most popular National Park in the US. From Old Faithful to the Grand Prismatic Spring and seeing ...

Situated more than 20 miles southeast of Yellowstone's West Entrance, the Old Faithful area is home to Old Faithful and the Grand Prismatic Spring, two of Yellowstone's most famous attractions.