Webb Telescope Reveals Ancient Origins of Interstellar Comet 3I/ATLAS

AI-generated NewsSnap summary based on source reporting.
Published: 2026-06-26
Category: science
Source: NASA Science
Original source

Observations from NASA's James Webb Space Telescope (JWST) indicate that the interstellar comet 3I/ATLAS originated in an extremely cold and ancient stellar region, potentially predating our own Sun. The comet's unique chemical composition, particularly its high deuterium levels, suggests its frozen material has remained pristine since its earliest formation. This discovery offers valuable insights into the conditions of distant planetary systems in the early Milky Way.

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