Spectroscopy fully confirms 55 of 76 AI-selected gravitational-lens candidates

Researchers used MUSE on ESO’s Very Large Telescope to follow up 76 candidates selected by a residual neural network from DESI Legacy Imaging Surveys data. They measured redshifts for both foreground lenses and background sources in 55 systems, fully confirming them; 15 lacked enough source data and require more observations, while six were ruled out.