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Merger of two massive black holes is one for the record books
To date, the collaboration has detected dozens of merger events since its first Nobel Prize-winning discovery. Early detected mergers involved either two black holes or two neutron stars. In 2021, LIGO/Virgo/KAGRA confirmed the detection of two separate "mixed" mergers between black holes and neutron stars.
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A spinning universe could crack the mysteries of dark energy and our place in the multiverseEvidence that the universe is rotating was recently delivered by the James Webb Space Telescope (JWST), which found that two-thirds of galaxies are rotating in the same direction. This suggests a lack ...
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Can Gravitational Waves Rewrite the Rules of Black Hole Formation?Black holes this massive are forbidden through standard stellar evolution models.” And with those words, Cardiff University’s Mark Hannam, a member of the LIGO-Virgo-KAGRA (LVK) Collaboration, ...
"I think that the simplest explanation of the rotating universe is the universe was born in a rotating black hole," University of New Haven theoretical physicist Nikodem Poplawski, who champions ...
Without a doubt, since its launch, the James Webb Space Telescope (JWST) has revolutionized our view of the early universe, but its new findings could put astronomers in a spin. In fact, it could tell ...
Even a rotating cosmos has only a weak connection to the universe-inside-a-black-hole idea, however. Yes, black holes (and white holes) rotate, but it’s not straightforward how that ...
From this, they calculated M87*’s spin parameter, a measure of how fast a black hole is rotating. The result: 0.8 on a scale from 0 to 1, with 1 being the theoretical maximum.
General relativity predicts that the only rotating black hole solution is the Kerr spacetime. This means a black hole can be fully described by just two properties: mass and spin.
That means nothing can sit still around a rotating black hole, including the "plates" that these cosmic titans feed from. Those flattened clouds of gas and dust surrounding supermassive black ...
In 1971, English mathematical physicist and Nobel-prize winner Roger Penrose proposed how energy could be extracted from a rotating black hole. He argued that this could be done by building a ...
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