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This sort of scenario is quite possible, and would likely be the result of the merger of two supermassive black holes during the collision of the galaxies. We have evidence of this in the quasar 3C...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:57Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/132316 License name: CC BY-SA 4.0 License URL: https://creativecommons.org/licenses/by-sa/4.0/