cosmology
6 stories related to this topic, newest first.
theconversation.comCosmologist Proposes Framework for Laws of Physics Changing Over Time
João Magueijo outlines a model in which the fundamental constants and equations of physics evolved from an initial chaotic state before reaching their current form. The proposal addresses how physical laws could have originated without invoking deeper meta-laws.
sciencealert.comCosmic Voids Offer New Data on Gravity, Dark Energy, and Expansion Rate
Astronomers are using cosmic voids to study gravity, dark energy, and the Hubble tension. New telescope surveys and simulations have increased the number of mapped voids and improved modeling of their evolution.
universetoday.comDESI Data Suggests Dark Energy May Be Weakening Over Time
Last year the Dark Energy Spectroscopic Instrument collaboration reported hints that dark energy, which drives the universe's expansion, is diminishing. The observations challenge the lambda-CDM model's assumption of a constant cosmological constant. Researchers have begun testin…
Photo: Beat Schuler / UnsplashNew Measurements Confirm Faster-Than-Expected Universe Expansion
Recent astronomical studies have confirmed a discrepancy in the universe's expansion rate, known as the Hubble tension. A collaboration measured the Hubble constant at 73.50 kilometers per second per megaparsec with high precision. Separate research suggests dark energy may be we…
bleedingcool.comStudy Revises Estimate for Universe's End to Earlier Timeline
Researchers have revised the estimated time until the universe ceases to exist to a shorter period than previously calculated. The study, reported by nypost.com, indicates this change based on new analysis. Details of the revision and its basis remain limited in available reports…
Substrate placeholder — needs reviewPhysicists Propose Exploding Primordial Black Holes Explain Matter-Antimatter Asymmetry
Researchers suggest that tiny primordial black holes formed shortly after the Big Bang exploded and produced shock waves that favored matter over antimatter in the early universe. These black holes, with masses around 1,000 kilograms, would have evaporated via Hawking radiation w…