Massive galaxy with no dark matter is a cosmic puzzle

Astronomers have discovered a galaxy that seems contain no dark matter, a cosmic puzzle that could challenge theories surrounding the evolution of the universe.

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Los Muchachos ,Ignacio Trujillo ,Anna Ferr ,University Of La Laguna ,Perseus Cluster ,Milky Way Sized ,William Herschel Telescope ,Roque De Los Muchachos Observatory ,Canary Island ,