|Title||Fermi's first year in orbit|
NASA's Fermi Gamma-ray Space Telescope (FGST) was launched on June 11, 2008. The Large Area Telescope (LAT) instrument measures cosmic gamma-ray radiation in the energy range 20 MeV to > 300 GeV, with supporting measurements by the Gamma-ray Burst Monitor (GBM) for gamma-ray bursts from 8 keV to 30 MeV. The LAT, with a large improvement in sensitivity, large field-of-view, and much finer angular resolution compared to previous high-energy telescopes, observes 20% of the sky at any instant and covers the entire sky every 3 hours. FGST is providing providing an important window on a wide variety of high-energy phenomena, including pulsars, supernova remnants and the origin of cosmic rays, active galactic nuclei, and gamma-ray bursts - as well as searches for hypothetical new phenomena such as supersymmetric dark-matter annihilations and exotic relics from the Big Bang. I will describe results obtained during the first year sky-survey phase of the Fermi mission.