Grand Prismatic Spring, Yellowstone.Hot water rises in the middle, too extreme for most life, so it stays deep blue.

Grand Prismatic Spring, Yellowstone.Hot water rises in the middle, too extreme for most life, so it stays deep blue. it cools outward, different microbes take over: yellow Synechococcus, orange Chloroflexi. Their pigments, not dyes, make the rainbowScience and facts💡