NASA looks for the origins of interstellar comet 3I/ATLAS photo of the day for June 24, 2026

NASA's James Webb Space Telescope has identified unique chemical signatures in the interstellar comet 3I/ATLAS. These findings confirm the object's origin outside our solar system by detecting carbon and heavy hydrogen ratios not found in local comets.
Why it matters
Studying interstellar objects provides critical data on the chemical composition of other star systems and the formation of the universe.
Solar System Comets NASA looks for the origins of interstellar comet 3I/ATLAS | Space photo of the day for June 24, 2026 News By Chelsea Gohd published 24 June 2026 Using the JWST, astronomers found ratios of carbon and heavy hydrogen in 3I/ATLAS not found in comets in our solar system.
The article is a straightforward scientific report based on observational data from NASA.
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