World’s largest acidic geyser erupts for first time since 2020

Popular Science

by Laura Baisas

March 3, 2026

World’s largest acidic geyser erupts for first time since 2020

Yellowstone's Echinus Geyser spews out hot water that's as acidic as vinegar. The post World’s largest acidic geyser erupts for first time since 2020 appeared first on Popular Science.

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Originally published on Popular Science on 3/3/2026