GLAST Observatory reveals entire gamma-ray sky

This image, made using UW-developed software, is the first from the Fermi Gamma-ray Space Telescope. It reveals bright emission in the plane of the Milky Way (center), bright pulsars and super-massive black holes. The telescope will observe the sky at energies from 10 million to 300 billion electron volts. A photon of visible light is about 2 electron volts, and the telescope's detectors will receive about 2 photons per second. NASA/Department of Energy/Large Area Telescope team