NASA's Fermi space telescope finds a strange supernova with missing gamma rays 

 NASA's Fermi Space Telescope has failed to see gamma rays from a nearby supernova that should be created when it generates the high-energy cosmic rays that bombard Earth in their trillions. 

https://cdn.mos.cms.futurecdn.net/nuumYfEYLWYXw8DEQBSFM4.png

https://www.space.com/supernova-fermi-nasa-space-telescope-gamma-ray