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, Shara comma Michael, 2000, 'Recovery and Characterization of Old Novae in the Globular Clusters M80 and M14', 1.0, European Space Agency, https://doi.org/10.5270/esa-1xpm1xf