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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, 2011, Multiple Generations Of Stars In Massive Galactic Globular Clusters, 1.0, European Space Agency, https://doi.org/10.5270/esa-sln6tb8
