"It was something I’ve never seen before and I’ve looked at tens of thousands of images of galaxies over my career," he said.

Yale astronomer Pieter van Dokkum and a team of researchers have discovered an object in space they call the "Infinity" galaxy—two recently-collided galaxies that, together, look like the symbol for infinity.

“Third, as an unexpected bonus, it turns out that both galaxy nuclei also have an active supermassive black hole. So, this system has three confirmed active black holes: two very massive ones in both of the galaxy nuclei, and the one in between them that might have formed there.