Technology & Science
OH Radio Pick-Up and CO2-Rich Spectra Recast Interstellar Visitor 3I/ATLAS
New measurements—MeerKAT’s 24 Oct radio detection of hydroxyl absorption lines and JWST/SPHEREx finding an extreme CO2/H2O ratio—confirm 3I/ATLAS is a heavily processed comet, undermining ‘alien craft’ claims and dashing hopes it harbors pristine extrasolar material.