Extracted 1D NIRSpec prism spectra of galaxies with good redshifts in the GOODS-South/HUDF field, ordered by redshift (with highest redshifts at the top). Each spectrum is plotted in flux units of f_λλ^1.5 (i.e. a galaxy with a spectral slope of β = −1.5 will have constant brightness with wavelength in this plot) and normalised by the mean intensity at 2.3 < λ < 4.45 μm. Wavelength increases to the right, from 0.6–5.3 μm. The Lyman-α break and Balmer/4000 Å break are clearly visible, as are the prominent emission lines Hα and the Hβ+[OIII] 4959,5007 complex (which is blended at low redshift but resolved at higher redshift).