Excess of Gamma Rays (3 of 3) (IMAGE) DOE/SLAC National Accelerator Laboratory Caption An excess of gamma rays coming from the center of the Milky Way has fueled hopes the signal might stem from hypothetical dark matter particles that collide and destroy each other (left). The radiation could also be produced by pulsars -- rapidly rotating neutron stars with strong magnetic fields (right). Credit Greg Stewart/SLAC National Accelerator Laboratory Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.