High-energy cosmos is violent with hint of dark matter
17:01 02 July 2013 by Adam Becker
The highest-energy map of the entire sky is part mayhem, part mystery. Created by NASA's Fermi space telescope, it reveals hundreds of examples of the most violent and explosive objects in the universe, plus a hint of mysterious dark matter.
For three years, the Fermi Large-Area Telescope has been in orbit around Earth, scanning the sky for gamma rays with an energy between 10 and 300 gigaelectronvolts – more energetic than any previously seen by satellites, but still too weak to spot from the ground. [Read more] ...