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 ...

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.

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

A pair of tourists decided they wanted a closer look at Yellowstone ... off-trail at Grand Prismatic also risks damaging the delicate bacterial mats that give the spring its signature vivid ...

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

From hidden thermal hot spots to secret hiking trails, the park is packed with hidden wonders, and we are here to tell you ...

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 ...

Yellowstone, home to many supervolcanoes on Earth, has shown some underground movement for the first time in 160,000 years. Scientists have detected magma moves, which have caught many’s attention and ...

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