Hopes dim that gamma rays can reveal dark matter

The distribution of stars in the Milky Way points to a more mundane source of the excess light

gamma rays

GALACTIC GLARE  Dark matter probably doesn’t generate an excess of gamma rays coming from the center of the Milky Way, shown here superimposed over an image of the galaxy.

T. Linden/Univ. of Chicago, A. Mellinger/Central Mich. Univ., NASA

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