JWST + interstellar objects = new insights into the chemical evolution of our Galaxy! Big thanks to the rest of the team, including @nature.com for helping get this work out while 3I/ATLAS is still within Saturn's orbit (although our preprint came out in February).
science.nasa.gov/missions/web...
science.nasa.gov
NASA’s Webb Finds Clues to Ancient, Distant Origin of Comet 3I/ATLAS - NASA Science
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
