Topic
cosmology
8 stories related to this topic, newest first.
news.sky.comworld5 days ago
Euclid telescope identifies 31 ancient quasars including two oldest observed
The European Space Agency's Euclid telescope detected 31 quasars, two of which formed when the universe was about 670 million years old. The findings double the number of known ancient quasars and extend the previous record by roughly 20 million years.
news.google.comtechnology7 days ago
47-Million-Galaxy Study Finds Filaments Stay Aligned Across Billions of Light-Years
Researchers used Dark Energy Spectroscopic Instrument data spanning 11 billion years to test large-scale uniformity. The analysis detected coherent galaxy alignments on gigaparsec scales. Wired reported the results and the authors' call for independent checks.
theconversation.comscience51 days ago
Cosmologist 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.
news.google.comscience51 days ago
Cosmic 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.comscience62 days ago
DESI 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 / Unsplashscience86 days ago
New 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.comworld92 days ago
Study 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 reviewscience94 days ago
Physicists 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…