A surprising discovery of gamma rays could shed light on the cosmic mystery

Astronomers have discovered an unexpected and unexplained phenomenon outside our Milky Way Galaxy that emits high-energy light called gamma rays. The team behind the discovery, including NASA and cosmologist Alexander Kashlinsky of the University of Maryland, found the gamma-ray signal while sifting through 13 years of data from NASA’s Fermi telescope. “It is a completely … Read more