Dark Energy – NeRDs Moonbase

NASA’s Roman Mission Gets Cosmic ‘Sneak Peek’ From Supercomputers

June 12, 2024 NeRD

Researchers are diving into a synthetic universe to help us better understand the real one. Using supercomputers at the U.S. DOE’s (Department of Energy’s) Argonne National Laboratory in Illinois, scientists have created nearly 4 million simulated images depicting the cosmos as NASA’s Nancy Grace Roman Space Telescope and the Vera C. Rubin Observatory, jointly funded by NSF (the National Science Foundation) and DOE, in Chile will see it. Michael Troxel, an associate professor of physics at Duke University in Durham, North Carolina, led the simulation campaign as part of a…

What is Dark Energy? Inside our accelerating, expanding Universe

February 5, 2024 NeRD

11 min read What is Dark Energy? Inside our accelerating, expanding Universe Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, driven by an unknown force that scientists have named dark energy. But what exactly is dark energy? The short answer is: We don’t…

Dark Energy Survey Catalogs 226 million Galaxies

May 28, 2021 NeRD

The latest release from the Dark Energy Survey catalogs millions of galaxies, mapping the history of galaxy clustering across space and time. The post Dark Energy Survey Catalogs 226 million Galaxies appeared first on Sky & Telescope.