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Hayadan > Galaxy survey

Galaxy survey

An observation showing that the dark matter in the universe is divided in the form of a network of dense (white) and empty (black) regions. The largest white areas are the size of the full moon in the sky. Photo: van Weerbeek, Hymans and CFHTLenS partners

Astronomers measured the concentration of dark matter about 6 billion years ago

Avi Blizovsky
January 17, 2012
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