Signs of alien life on exoplanet K2-18b have all but vanished

Earlier this year, astronomers reported possible evidence of life on another planet – but new observations from JWST suggest the apparent biosignature isn’t there after all

​Earlier this year, astronomers reported possible evidence of life on another planet – but new observations from JWST suggest the apparent biosignature isn’t there after all Earlier this year, astronomers reported possible evidence of life on another planet – but new observations from JWST suggest the apparent biosignature isn’t there after all