Artist’s conception of binary black holes in UGC 4211 (IMAGE)

National Radio Astronomy Observatory

Artist’s conception of binary black holes in UGC 4211

Caption

Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) to look deep into the heart of the pair of merging galaxies known as UGC 4211 discovered two black holes growing side by side, just 750 light-years apart. This artist’s conception shows the late-stage galaxy merger and its two central black holes. The binary black holes are the closest together ever observed in multiple wavelengths.

Credit

ALMA (ESO/NAOJ/NRAO); M. Weiss (NRAO/AUI/NSF)

Usage Restrictions

No restrictions.

License

Public Domain

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