The water in the pool, which is light blue in color, was measured at 109°F. USGS said satellite images indicate the spring formed in a series of events between December 2024 and February 2025.

By early January, a shallow depression had formed. By mid-February, the basin had filled with warm, silica-rich water that gives the pool its distinctive baby blue color. What the Science Says ...

Geologists making routine rounds in April 2025 came upon a pool, roughly 13 feet wide and full of light blue, 109°F water, that hadn’t been there the previous fall. The spring’s creation ...

The geologists had not visited the North Geyser Basin since fall 2024. On this visit, they discovered a new pool in the ...

For blue water that is translucent or crystalline, go with an interior tile or liner that’s pale blue or shades of white. Accent the natural design of your pool with green, tan or brown colors ...

In December 2024, there was no sign of the hole, but by 6 January 2025, a small depression had formed. By February 13, the water-filled hole was well and truly established.

The aptly named Blue Abyss pool will be built in Cornwall, south west England, and will hold 42 million liters of water — equivalent to that of 17 Olympic size swimming pools, or 168 million ...