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https://www.popsci.com/environment/worlds-largest-acidic-geyser-erupts-yellowstone/
World’s largest acidic geyser erupts for first time since 2020 | Popular Science
Mar 3, 2026 - Yellowstone's Echinus Geyser spews out hot water that's as acidic as vinegar.
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https://gizmodo.com/worlds-biggest-acidic-geyser-springs-back-to-life-after-years-of-dormancy-2000729466
World’s Biggest Acidic Geyser Springs Back to Life After Years of Dormancy
Mar 4, 2026 - The geyser is likely to fall back into dormancy soon, but there's a slim chance the spectacular eruptions will continue into summer.
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https://interestingengineering.com/science/worlds-largest-acidic-geyser-erupts
World’s largest acidic geyser awakens: Giant ends six-year slumber
Mar 4, 2026 - Echinus Geyser is about 66 feet wide, with a spiky rim made of silica, and is surrounded by rocks that resemble sea urchins.
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