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New research shows fast-spinning black holes have different qualities than slower ones. The idea has implications for other objects, like fast-spinning stars. The goal of studying black holes is usually to marry classical and quantum physics.
Wait, are black holes fuzzballs, or are they hairless? The big quest to understand black holes continues in the form of new research about the fastest-spinning examples.
Scientists have found that while most black holes follow a particular theorem about what falls inside, a black hole spinning fast enough can extend “hairs” all the way back into regular space.
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Recently, scientists released new observations about aging black holes, a special case in which the black holes appear to slacken and begin belching information back over the event horizon. Now, a second special case could do kind of the same thing, but from the opposite end: Black holes that spin fast enough end up creating a kind of vortex of hairs that link it across the event horizon as well.
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Think of a black hole like, well, a black box. This idea from engineering and programming posits that a closed system could have almost anything inside, and our only way to scrutinize it is by studying the input and output. In the case of a black hole, what we put in is literally anything, and what we get out is a mere measure of mass only.
Universe Today’s Brian Koberlein explains:
“You could make a black hole out of a Sun’s
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