Get ready for a little Christmas in July: There’s a new baby blue pool in Yellowstone National Park, and science suggests it started forming on the winter holiday.

A new light blue hot spring has formed in Yellowstone’s Norris Geyser Basin after months of small hydrothermal explosions. Discover how scientists tracked this ...

On Monday afternoon, the U.S. Geological Survey announced the discovery of a new geothermal pool in Yellowstone National Park ...

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a visit from St. Nicholas.

Ice-blue in color, warm in temperature and a little larger than a backyard hot tub, the pool is the newest known feature to ...

Jimmy Kimmel gave a salute to “The Late Show With Stephen Colbert” — and blasted rival network CBS — on Thursday evening, ...

Norris Geyser Basin also hosts several craters that reach up to 100 meters (328 feet) in diameter. These craters were formed during hydrothermal explosions that ejected boiling water, mud and rocks.

Named for Philetus Norris, who served as Yellowstone National Park superintendent from 1877 to 1882, Norris Geyser Basin is Yellowstone's hottest and most-changing geyser basin.

C, 2001–2002. Uplift near Norris and subsidence of the caldera floor continued to slow during this period. Arrow labeled NGB marks the location of Norris Geyser Basin. D, 2002–2003.

Tourists travel along the boardwalk at Norris Geyser Basin earlier this season. A man died Tuesday after walking 225 yards off the boardwalk and falling into a hot spring in the area.

Norris Geyser Basin is one of the only major thermal basins located outside of Yellowstone Caldera (it is about 2.5 miles north of the caldera rim) and covers an area of about 800 acres.

Bozeman, Mont. • It was the talk of the boardwalk. Everyone had heard that there was an unusually active geyser at Yellowstone National Park in the Norris Geyser Basin, near the center of the park.