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The Universe's Secret Phase: How the Dark Sector Reconciled the Astronomers ⚡ экспресс

Original: "Hot New Early Dark Energy: Dark Radiation Matter Decoupling"
arXiv:2508.03795 · 2025-08-05 · CC BY 4.0 · ⏱ 1 min · Cosmology HEP Phenomenology HEP Theory
An early phase transition in the dark sector explains the mystery of the universe's expansion rate.
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The cosmos is expanding faster than predicted. Scientists have proposed that in the universe’s infancy, something like a switch flicked—a sudden phase transition in the invisible dark sector. It gave expansion a boost and reconciled the star-based maps with the cosmic microwave background.

🎯 Phase transitions aren’t fiction: it’s believed that in the first second after the Big Bang, the universe underwent several such transformations, giving rise to the forces of nature we know.

🎬 In Isaac Asimov’s novel 'The Gods Themselves,' contact with a parallel universe where the laws of physics are different—isn’t that a dark sector with its own hidden rules?

Scientists
Alan GuthAndrei LindeGeorges LemaîtreJames PeeblesAdam RiessBrian Schmidt
Tags
dark matter expansion of the universe dark energy big bang Standard Model
Laws
Friedmann equationsHubble's lawgravitational lensingNoether's theoremEinstein field equationsPlanck's law
Original: arXiv:2508.03795 · CC BY 4.0 · bridge42worlds