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 ...

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. Park geologists discovered the ...

The Morning Glory Pool — perched near the famous “Old Faithful” geyser — was for years a must-see attraction in the Upper Geyser Basin in Yellowstone National Park, according to Cowboy ...

The pale blue color comes from high levels of dissolved silica. Unlike many other thermal pools, this one doesn’t have significant microbial mats adding extra color … yet.