Relationship Consummated

“The image shows two colliding galaxies, collectively called Arp 299, located 134 million light-years away. Each of the galaxies has a supermassive black hole at its heart.”

“NuSTAR has revealed that the black hole located at the right of the pair is actively gorging on gas, while its partner is either dormant or hidden under gas and dust.”

“The new X-ray data from NuSTAR — overlaid on a visible-light image from NASA’s Hubble Space Telescope — show that the black hole on the right is, in fact, the hungry one.”