In this paper, we summarize the work done to build a UV-EUV spectral atlas of a prominence and we introduce some recent scientific results obtained from these data. For this work we used SOHO/SUMER data covering the full wavelength range accessible by the instrument (from about 800 to 1600 Å), when a prominence and the quiet Sun (used as spectral reference) were observed in October 1998. We present here only a fraction of the data, which results in the analysis of more than 600 spectral lines, including some new identifications. Here we also present the differential emission measure obtained from the data, both for the quiet Sun and the prominence. The main differences in characteristics are discussed.