But the eruptions left behind a new thermal pool. Ice-blue in color, warm in temperature and a little larger than a backyard hot tub, the pool is the newest known feature to bubble up in Yellowstone’s ...

Who would have thought that a neonatal hot spring would pop up so surreptitiously in an area renowned for geology fireworks? But during April 2025, geologists on a regular maintenance run through ...

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