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NASA's Webb detects methane and strange chemistry on interstellar comet 3I/ATLAS

Science Daily · Jun 4, 2026, 5:17 AM

Why this matters: new research or scientific developments with potential real-world impact.

NASA's James Webb Space Telescope has uncovered unusual chemistry in interstellar comet 3I/ATLAS, including the first direct detection of methane on a visitor from another star system. The comet also contains exceptionally high levels of carbon dioxide, making it unlike most comets born in our solar

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