A nova is a cataclysmic event on the surface of a white dwarf star in a binary stellar system that increases the overall brightness by several orders of magnitude. A team of European astronomers has discovered the remains of a nova in a globular cluster called Messier 22. Using the MUSE, an integral-field spectrograph on ESO’s Very Large Telescope, Göttgens et al discovered the remains of a nova near the center of the globular cluster Messier 22....
