James Webb Space Telescope uncovers new clues about the origins of 'interstellar invader' comet 3I/ATLAS
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Using the James Webb Space Telescope (JWST), scientists have found that the interstellar comet 3I/ATLAS was built from tiny grains of ice mixed with dust that are quite different from the solar system’s comets. These ice grains do, however, bear striking similarities to some icy bodies located at the edge of the solar system, beyond the orbit of Neptune, so-called trans-Neptunian objects (TNOs).3I/ATLAS was discovered entering the solar system in the summer of 2025. It was only the third object
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