2014-07-25 - Mysterious signal from the center of the Perseus Cluster unexplained by known physics

  • Posted on: 21 April 2016
  • By: admin

The Watchers - Astronomers using NASA's Chandra X-ray Observatory to explore the Perseus Cluster, a swarm of galaxies approximately 250 million light years from Earth, have observed the spectral line that appears not to come from any known type of matter.