Fermi gamma-ray telescope discovers its most extreme blazars yet
Blazar

Lola Gayle, STEAM Register Astronomers using NASA's Fermi Gamma-ray Space Telescope have discovered five of the most distant gamma-ray blazars yet known, and two of them are hiding huge monsters at their centers. The light coming from the most distant object began its journey to us when the universe was 1.4 billion years old. To put…