Two galaxies are in the midst of a colossal collision, merging into a single galaxy. ALMA looked deep, and saw both of their supermassive black holes enveloped in huge clouds of gas. The thing that’s weird and yet NOT weird? It didn’t see a third.
5/5 But that’s science! And the ALMA obs tell us a lot about the black holes, their environment, and what happens in the chaos of a collision that is literally cosmic in scale. /fin