M63: The Sunflower Galaxy. © Satoshi Miyazaki (NAOJ)/Suprime-Cam/Subaru Telescope/NOAJ

(news.sciencedaily.com)OCT. 23, 2009 — An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding of gravity. (...)
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Universality of Galactic Surface Densities within One Dark Halo Scale-Length