Astronomers zero in on a missing link to understanding the history of our universe – AlterNet

Astronomers have discovered the most massive black hole collision ever observed, and also the most distant, at 7 billion light years away meaning it happened when our universe was only half its current age. More intriguingly, the black hole merger originated in two black holes of a size that had never been observed before, according to new research published this week.
Two papers in the journals Physical Review Letters and The Astrophysical Journal Letters detail this unprecedented cosmic show,…

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