Dark Energy Survey Releases Six-Year Results: Data from 669 Million Galaxies Helps Constrain Cosmic Accelerated Expansion
On August 4, the Dark Energy Survey (DES) project released its six-year findings on dark energy detection. The project compiled 18 related papers, based on nearly 300,000 astronomical images captured between 2013 and 2019, recording information on 669 million galaxies, thousands of galaxy clusters, and more than 3,000 supernovae to study the accelerated expansion of the universe and the evolution of cosmic structure. To carry out DES, Fermi National Accelerator Laboratory built an extremely sensitive 570-megapixel digital camera, DECam, which was installed on the Blanco 4-meter telescope at the National Science Foundation's Cerro Tololo Inter-American Observatory in the Chilean Andes. (Image courtesy of Reidar Hahn/Fermi National Acceler...
2026-08-06
