Spectrum of Didymos over the MUSE wavelength range. Upper: spectrum of Didymos measured within a 5″ radius aperture on September 27, illustrating the absence of emission lines following the impact. Lower: reflectance of Didymos on the same date computed using a solar spectrum and a factor of 5 binning in the spectral direction. Overplotted in red for comparison is the reflectance spectrum of Didymos on September 26, pre-impact. Grey areas are strongly affected by telluric absorption.