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A ring of blue. A ring of pink. And a ring of black holes.
Four hundred and thirty million light-years from earth a ring of black holes is forming, possibly around some very nervous aliens. In the constellation Cetus lies ARP 147, the remains of a spiral galaxy and an elliptical galaxy that … interacted.
Massive Black Hole Yields its Mysteries to Astronomers
To strive for the most complete understanding of a black hole, astronomers have turned their telescopes to the double-star system Cygnus X-1, which boasts the first of these discovered oddities.
Scientists discover largest black holes ever recorded
Astronomers have recorded the biggest black holes ever detected — a pair of stellar monsters that somehow have managed to swallow the equivalent of 10 billion suns each.
