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April 22, 2015

The sky map shows the radiant of the Lyrid meteor at dawn on April 23, 2015

Tonight (22/4) is the peak of the meteor shower for the fairs

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The first map of the Dark Energy Survey traces the distribution of dark matter over a large region of the sky. The colors describe the effective mass density. (Image: Dark Energy Survey)

Scientists have mapped the dark matter around millions of galaxies

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