• Black holes are among the most mysterious places in the universe; locations where the very fabric of space and time are warped so badly that not even light can escape from them. According to Einstein’s theory of general relativity, at their center lies a singularity, a place where the mass of many stars is crushed into a volume with exactly zero size. However physics papers, published on Dec.10, 2018, in the journals Physical Review Letters, may make scientists reconsider what we think we know about black holes. Black holes might not last forever, and it’s possible that we’ve completely misunderstood their nature and what they look like at the center, according to the papers.
  • Their calculation predicts that space-time is curved very strongly near the center of the black hole. The result is that space-time continues into a region in the future that has the structure of a white hole. A white hole is like a black hole in reverse, meaning that unlike a black hole, which pulls matter in, a white hole shoots matter out.
  • It is certainly premature to accept this interesting new idea. Instead, it would be prudent to see how ongoing calculations using loop quantum gravity unfold. If predictions improve and begin to look more like some of the unexplained observed astronomical phenomena, it could be that this new result will both explain how quantum gravity works and reshape our understanding of both the past and the future of our universe.

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https://www.space.com/41722-ask-a-spaceman-black-holes-part-one.html

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