Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have mapped the distribution of molecular gas in NGC 6240, a nearby merging galaxy system that hosts two supermassive black holes growing simultaneously. NGC 6240 as seen with ALMA (top right) and the NASA/ESA Hubble Space Telescope (combined image on the left and zoomed in on the bottom right). In the ALMA image, the molecular gas is blue and the black holes are the red dots....
