How to see the invisible: Using the dark matter distribution to test our cosmological model sciencedaily.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sciencedaily.com Daily Mail and Mail on Sunday newspapers.
Astrophysicists led by Princeton University and the astronomical communities of Japan and Taiwan have measured a value for the “clumpiness” of the universe’s dark matter (known to cosmologists as “S8”) of 0.776, which does not align with the value derived from the Cosmic Microwave Background, which dates back to the universe’s origins. This has intriguing implications for the standard cosmological model.
"You can study the holes between the galaxies similarly to the way you would study the structure of materials,” says Princeton theoretical chemist Salvatore Torquato. His new paper with astrophysicist Oliver Philcox offers new tools for understanding complicated structures from the atomic level to the Universe itself.