Hollywood legend Kevin Costner ruminates on President Teddy Roosevelt in the new Fox Nation limited series 'Yellowstone to ...
That's because the spin rates reveal something about the black holes' formation history. "Unexpectedly, we found that they were spinning too fast to have been formed by galaxy mergers alone," he said.
"Unexpectedly, we found that they were spinning too fast to have been formed by galaxy mergers alone. "They must have formed in large part from material falling in, growing the black hole smoothly ...
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