As interstellar comet 3I/ATLAS began moving away from the Sun in December 2025, astronomers took the opportunity to turn NASA’s powerful James Webb Space Telescope in its direction and capture detailed measurements of its chemical components. The comet was freshly warmed from its closest pass by the...
NASA’s Webb Finds Clues to Ancient, Distant Origin of Comet 3I/ATLAS
By system
June 22, 2026 •
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NASA
