Gamma rays offer mixed messages on identity of dark matter

Conflicting results from Fermi telescope puzzle astronomers

middle of the Milky Way

CENTRAL HUB  The middle of the Milky Way is a crazy place, as shown in this visible and infrared image. Scientists are trying to figure out whether gamma rays from this region are the signature of dark matter.

JPL-Caltech/NASA, ESA, CXC, STScI

A stream of high-energy gamma rays from the heart of the Milky Way is teasing scientists about the identity of the universe’s invisible matter.