A giant black hole keeps evading detection and scientists can't explain it

A giant black hole keeps evading detection and scientists can't explain it
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The big galaxy at the core of the cluster Abell 2261 should harbor a supermassive black hole that weighs as much as 3 billion to 100 billion suns. But astronomers can't find it.



January 1, 2021 at 06:38PM
via Space.com read more...