At the heart of this distant galaxy lies not 1, but 2 jet-blasting black holes
The two black holes at the heart of the galaxy OJ 287 are true behemoths with masses of 18.35 billion and 150 million times the mass of our Sun.
from Space https://ift.tt/4zMSXhQ
from Space https://ift.tt/4zMSXhQ
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