Tag: #interstellar

Webb detects unusual isotopes in interstellar comet 3I/ATLAS, suggesting formation in an ancient cold environment

JWST spectra of interstellar comet 3I/ATLAS show very high deuterium and uncommon carbon ratios, pointing to formation in a cold, ancient, metal-poor region.

#interstellar, #comet, #jameswebb, #isotopes

Paper Flags April 1 South Atlantic Fireball as Leading Post‑2018 Interstellar Meteor Candidate

An arXiv preprint argues an April 1 South Atlantic fireball may be the strongest post‑2018 interstellar meteor candidate, but relies on unverified U.S. sensor data.

#astronomy, #meteors, #interstellar

Preprint claims detection of four‑carbon sugar erythrulose in Milky Way molecular cloud

A June 2 arXiv preprint reports erythrulose, a four‑carbon sugar, in a molecule‑rich cloud near the Milky Way's center; result awaits peer review.

#astrochemistry, #interstellar, #sugars, #preprint

Webb Detects Methane in Interstellar Comet 3I/ATLAS

NASA’s James Webb made the first direct detection of methane in an interstellar object, finding CH4 plus CO2 and water in comet 3I/ATLAS.

#jwst, #interstellar, #comets, #methane