Pushing the Limit: Black Hole Spins at Phenomenal
Rate An international team of astronomers measured the
spinning speed of three black holes, finding that one rotates at a
breakneck 950 times per second, nearing its rotation limit of 1,150
spins a second. Read
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Top 10 Monogamous Animals
It
might be a treasured value in many human cultures, but monogamy is
rare in the animal kingdom at large. Yet that doesn't mean it's
boring.