ΛCDM

Comparison between a simulation of the universe in the ΛCDM model and a simulation including massive neutrinos and corrected gravity.

Artificial intelligence learned the laws of the universe – then struggled to identify new physics

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Researchers trained a neural network first on the standard cosmological model and then on models that included massive neutrinos, corrected gravity, and primitive non-Gaussianity. The method saved expensive simulations, but in some cases caused “transfer”
Type Ia supernova - is the universe slowing down? Illustration: depositphotos.com

Is the universe slowing down?

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Baryon acoustic oscillations represent the sound of the Big Bang. Credit: Gabriela Secara, Perimeter Institute, CC BY-SA

New measurements suggest we may be living in a giant "cosmic void"

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New research suggests we may reside in a local cosmic void – a region devoid of galaxies and matter – which could explain the rapid expansion of the universe relative to the Standard Model predictions and provide a solution
An artist's illustration of the mechanism proposed by Professor Stefano Profumo, in which quantum effects near the rapidly expanding cosmic horizon after the Big Bang gravitationally create dark matter particles. Credit: Stefano Profumo

Two bold theories may finally explain dark matter

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