Rogue supermassive black hole observed far from galactic center

Astronomers have detected a supermassive black hole located about 30,000 light‑years from the nucleus of a distant galaxy, roughly 750 million light‑years from Earth. The black hole was identified when a star ventured too close and was torn apart in a tidal disruption event, producing a bright flash captured by NASA's Swift space telescope. Follow‑up observations with the 4.1‑meter SOAR telescope in Chile confirmed the phenomenon. The discovery, published in *The Astrophysical Journal Letters*, marks the farthest known example of a wandering (or “rogue”) supermassive black hole, a class of objects previously observed only near galactic centers. Researchers from the University of Maryland and the University of North Carolina at Chapel Hill, including Professor Igor Andreoni, noted that the event demonstrates that such black holes can be studied using optical telescopes and artificial‑intelligence classifiers that sift through large data sets.

The finding expands understanding of black‑hole dynamics and galaxy evolution, suggesting that massive black holes can be displaced from their usual central locations and become visible when they accrete material from disrupted stars.