dark-energy
4 stories related to this topic, newest first.
news.google.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…
Substrate placeholder — needs reviewDESI Completes Five-Year Sky Survey Mapping Over 47 Million Galaxies and Quasars
The Dark Energy Spectroscopic Instrument has finished its main five-year survey, capturing data on more than 47 million galaxies and quasars. This enables the creation of the most detailed map of the universe to date. The data will aid in studying dark energy and galaxy distribut…
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…