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Interstellar comet 3I/ATLAS has astonishingly high ratio of semi-heavy water to water, over 40 times Earth's oceans

Comet 3I/ATLAS continues to be found exceptional. The third known interstellar object is a weird comet, with many properties ...

Rare interstellar comet spews massive amounts of water into space

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...