JWST NIRSpec Spectroscopy of the Remarkable Bright Galaxy GHZ2/GLASS-z12 at Redshift 12.34

We spectroscopically confirm the M_{\rm UV} = -20.5 mag galaxy GHZ2/GLASS-z12 to be at redshift z=12.34. The source was selected via NIRCam photometry in GLASS-JWST ERS data, providing the first evidence of a surprising abundance of bright galaxies at z \gtrsim 10. The NIRSpec PRISM spectrum shows detections of N... Show more