Recently discovered giant arc of galaxies may “break” Standard Model in cosmology

It awaits confirmation:


If it is real, the Giant Arc would join a growing group of large-scale structures in the universe that, taken together, would break the standard model of cosmology. This model assumes that when you look at large enough volumes of space — above about 1 billion light-years — matter is distributed evenly. The Giant Arc appears about three times as long as that theoretical threshold. It joins other structures with similarly superlative names, like the Sloan Great Wall, the Giant Gamma-Ray Burst Ring and the Huge Large Quasar Group.


Lisa Grossman, “An arc of galaxies 3 billion light-years long may challenge cosmology” at ScienceNews (June 10, 2021)

Standard Model:

The theories and discoveries of thousands of physicists since the 1930s have resulted in a remarkable insight into the fundamental structure of matter: everything in the universe is found to be made from a few basic building blocks called fundamental particles, governed by four fundamental forces. Our best understanding of how these particles and three of the forces are related to each other is encapsulated in the Standard Model of particle physics. Developed in the early 1970s, it has successfully explained almost all experimental results and precisely predicted a wide variety of phenomena. Over time and through many experiments, the Standard Model has become established as a well-tested physics theory. – CERN

Meanwhile:

Standard Model: “Our reliance on hypothetical dark matter is an embarrassment; a laboratory detection would be exceedingly welcome.” – CalTech

Hmmm. Watch this file.

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Published on June 24, 2021 21:17
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