All articles tagged with #lcdm
Einstein’s general relativity implied a dynamic universe, prompting him to insert a cosmological constant to keep it static; decades later, observations of accelerating expansion revived that constant as dark energy, fueling the Lambda-CDM model. While LCDM explains a vast range of cosmic phenomena, many cosmologists acknowledge it could still be incomplete or even wrong.
Six years of DES data from the Dark Energy Camera (DECam) on the Blanco telescope, spanning 758 nights and about 669 million galaxies, were analyzed using four probes—Type Ia supernovae, weak gravitational lensing, galaxy clustering and baryon acoustic oscillations—to dramatically tighten constraints on dark energy and the expansion of the universe. The results largely align with LCDM and the wCDM model, but reveal a tension in how matter clusters today compared with early-universe predictions, hinting at potential new physics as DES plans to combine its data with observations from the Vera C. Rubin Observatory’s LSST for even clearer cosmic maps.
New research suggests the Milky Way may have 80 to 100 more faint satellite galaxies than currently observed, supporting the Lambda Cold Dark Matter theory, with future telescopes like the Rubin Observatory expected to help detect these elusive objects.