Home This X-ray image shows the full extent of the Virgo Cluster, - which is the closest galaxy cluster (collection of galaxies) to us. The bright white spot at the center is the central galaxy M87 (known for the picture of the supermassive blackhole as observed by the Event Horizon Telescope). The hazy white glow around M87 is the very hot gas between galaxies. It extends out more in some directions than others, and isn’t circular; this is evidence that the Virgo Cluster is still in the process of forming. The colourful stripe in the bottom left comes from foreground emission inside our own galaxy and is known as one of the eROSITA bubbles.