New video: Largest-scale cosmic test ever favors dark matter over MOND
Anytime there’s a chance to subject our Universe to a new cosmic test, it’s imperative that we do it. First off, it gives the Universe a chance to surprise us: to show us something that we never could have learned unless we looked. Second off, it gives us a chance to test our underlying assumptions about the Universe: what it’s made of, what laws and rules it obeys, and how it behaves in…
The recent large-scale cosmic test conducted using data from galaxy surveys and the cosmic microwave background radiation has provided strong evidence favoring dark matter over the alternative theory of Modified Newtonian Dynamics (MOND). The test measured the kinetic Sunyaev-Zel'dovich effect, which is a difficult-to-measure phenomenon that can be used to determine the acceleration due to gravity on the largest scales in the Universe.
The results showed that gravity behaves as predicted by Einstein's General Relativity on cosmic scales between 100 million and 750 million light-years, ruling out MOND as an explanation for the gravitational effects observed. This new study provides a crucial piece of evidence in our ongoing quest to understand the composition and laws governing the Universe, thus challenging the consensus picture of reality.
Written by urgent.news from Big Think's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
