The image is from an observation program dedicated to the study of dwarf galaxies in the Virgo cluster that is searching for the visible light emissions from sources of X-rays in these galaxies. X-rays are often emitted by accretion discs, where material that is drawn into a compact object by gravity crashes together and forms a hot, glowing disc. The compact object can be a white dwarf or neutron star in a binary pair that is stealing material from its companion star, or it can be the supermassive black hole at the heart of a galaxy devouring material around it. Dwarf galaxies like IC 776, traveling through the Virgo cluster, experience pressure from intergalactic gas that is similar to the pressure you feel from air hitting your face when you ride a bicycle. This intergalactic gas pressure can both stimulate star formation and feed the central black hole in a galaxy. As more material swirls down toward the black hole, it creates an energetic accretion disc, hot enough to emit X-rays.