Recent observations with the James Webb Space Telescope (JWST) have further refined the spectroscopic redshift of GN-z11, one of the most distant galaxies identified with the Hubble Space Telescope (HST) at z=10.603. The presence of extremely dense gas (>10^{10} cm^{-3}), the detection of high-ionisation lines and of CII*1335 emission, as... Show more