What is a double black hole?

1 Answer
devi f.
Mar 16, 2018

Also called a binary black hole: two black holes orbiting each other, much like a binary star.

Explanation:

2006 saw the first announcement of a double black hole in the galaxy nomenclature 0402+379.

Then again in September 2017, another study suggested a pair exists in the galaxy NGC 7674 .

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