Launched in 1990, the NASA/ESA Hubble Space Telescope remains the premier UV and visible light telescope in orbit. With well over 1.6 million observations from 10 different scientific instruments, the ESA Hubble Science Archive is a treasure trove of astronomical data to be exploited.
European Space Agency, Windhorst comma Rogier A., 1994, 'THE EVOLUTION OF THE UV SPECTRA IN EARLY TYPE GALAXIES OUT TO Z=0.7: CLUES TO THE STELLAR POPULATION AND AGN'S IN WEAK RADIO GALAXIES.-II', 1.0, European Space Agency, https://doi.org/10.5270/esa-z8ra4ec