Origin of Milky Way's hypothetical dark matter signal may not be so dark

A mysterious gamma-ray glow at the center of the Milky Way is most likely caused by pulsars - the incredibly dense, rapidly spinning cores of collapsed ancient stars that were up to 30 times more massive than the sun. That's the conclusion of a new analysis by an international team of astrophysicists, including researchers from the Department of Energy's SLAC National Accelerator Laboratory. The findings cast doubt on previous interpretations of the signal as a potential sign of dark matter - a ...