Tourists have been blamed for ruining the beautiful blue colour of a hot spring in Yellowstone National Park in Wyoming by ...

Yellowstone National Park's famous Morning Glory Pool once had pristine blue water, giving it the resemblance of its namesake flower. Sadly, that is no longer the case, as the geothermal pool ...

While the average person may not think much of the microbes that dwell in the thermal pools of Yellowstone National Park, understanding them is another piece of the puzzle when it comes to ...

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

About that time University of Colorado microbiologist Norman Pace led a team doing microbial analyses in Yellowstone. In samples gathered at Obsidian Pool, using PCR and other methods, the team ...

Yellowstone Smithsonian American Art Museum Sapphire Pool, Yellowstone National Park Smithsonian American Art Museum Riverside Geyser, Yellowstone National Park Smithsonian American Art Museum The ...

While the center of the pool's cerulean hue is pretty characteristic ... earlier in the day (before 10 a.m.). A frequent visitor to Yellowstone advised fog can linger in the morning, so be ...