Este fue
tu cielo.

ULXs in M74

M74 is a nearly perfect face-on spiral galaxy, about 30 million light-years away in the constellation Pisces. The red blotches in this composite view are ultraluminous X-ray sources, or ULXs, mapped by the Chandra X-ray Observatory. These ULXs radiate 10 to 1,000 times more X-ray power than ordinary X-ray binary stars. Observing how their X-ray brightness changes helps astronomers understand these powerful objects.