Skip navigation and go straight to page content.
National Aeronautics and Space Administration
Goddard Space Flight Center
Sciences and Exploration
What is Fermi
Fermi Fridays - October
Galactic Surprises: Things That Go Bump in the Gamma Rays
An overview of some of Fermi's most surprising variable Galactic sources.
Tech: Targets of Opportunity & Crab Flares
When Galactic sources like the Crab Nebula suddenly brighten, Fermi repoints to collect as many gamma rays as fast as it can.
Behind the Scenes: Slowly Varying Gamma-ray Crab
The Crab Nebula continues to bring us surprises and it turns out that this previously presumed steady source actually slowly varies. Fermi-GBM uses the Earth Occultation Technique to monitor bright sources like the Crab.
Art of the Sky: Galactic Surprises from Binary Star Systems
Binary star systems are responsible for a lot of the Galactic fireworks Fermi observes. These systems have inspired animations and bakers alike.
NASA Official: Elizabeth Hays
Fermi FAQ, Comments, Feedback
› Page Last Updated: Fri, Nov 02, 2018