VLBA Reveals First-Ever Black Hole “Visual Binary”

VLBA image of center of galaxy 0402+379.

VLBA image of the central region of the galaxy 0402+379, showing the two cores, labeled C1 and C2, identified as a pair of supermassive black holes in orbit around each other.

Credit: Bansal et al., NRAO/AUI/NSF.
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Telescope VLBA
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