The universe keeps dying and being reborn, claims Nobel Prize winner

Sir Roger Penrose claims our universe has been through multiple Big Bangs, with more coming.

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  • Roger Penrose, the 2020 Nobel Prize winner in physics, claims the universe goes through cycles of death and rebirth.
  • According to the scientist, there have been multiple Big Bangs, with more on the way.
  • Penrose claims that black holes hold clues to the existence of previous universes.
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Stephen Hawking thought black holes were 'hairy'. New study suggests he was right.

The outer edges of a black hole might be "fuzzy" instead of neat and smooth.

NASA
  • A recent study analyzed observations of gravitational waves, first observed in 2015.
  • The data suggests, according to the researchers, that black holes aren't bounded by smooth event horizons, but rather by a sort of quantum fuzz, which would fit with the idea of Hawking radiation.
  • If confirmed, the findings could help scientists better understand how general relativity fits with quantum mechanics.
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Has a black hole made of sound confirmed Hawking radiation?

One of Stephen Hawking's predictions seems to have been borne out in a man-made "black hole."

Image source: NASA/JPL-Caltech
  • Stephen Hawking predicted virtual particles splitting in two from the gravitational pull of black holes.
  • Black holes, he also said, would eventually evaporate due to the absorption of negatively charged virtual particles.
  • A scientist has built a black hole analogue based on sound instead of light.
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And how it might solve Stephen Hawking’s black-hole paradox.

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