Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have observed a pair of merging galaxies, UGC4211, where two supermassive black holes are actively feeding on displaced dust and gas.
Credit: ALMA (ESO/NAOJ/NRAO), M. Koss et al (Eureka Scientific), S. Dagnello (NRAO/AUI/NSF)