By Annelies Rhemrev November 16, 2012 Messier 15, a globular cluster in Pegasus Image Credit: ESA/Hubble & NASA Click here for a larger image. Messier 15 (also designated NGC 7078) is a globular cluster of about 175 light-years across, [...]

By Annelies Rhemrev October 29, 2012 Messier 69, a globular cluster in Sagittarius Image Credit: ESA/Hubble & NASA Click here for a larger image. Messier 69 (also known as NGC 6637) is a globular cluster of roughly 85 light-years across, [...]