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 ...

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 ...

"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 ...

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

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.

The Grand Prismatic Spring is the most colorful place in all of Yellowstone. It is the largest hot spring in the United States and is one of the top things to see in Yellowstone National Park.

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

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

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.