Center for Astrophysics and Cosmology

Fermi Large Area Telescope

The Fermi Large Area Telescope (LAT), is the main instrument onboard the Fermi Gamma Ray Space Telescope spacecraft. Fermi was launched on 11 June 2008 and the mission was made possible by participation from NASA and the United States Department of Energy, and government agencies in France, Germany, Italy, Japan, and Sweden. The LAT is measuring high energy gamma rays in the energy range from about 20 MeV to more than 300 GeV and it covers about 20% of the sky at any time and imaging the whole sky every three hours. Its data are public and actively used by the community. NASA hosts a support center which assists users to download and analyze the Fermi LAT data (available at

Among the biggest LAT discoveries are the giant Fermi bubbles emanating from the center of our galaxy, more than 1000 active galactic nuclei, discovery of numerous millisecond pulsars and it provided one of the most stringent probes into the nature of dark matter particles. For the overview of main discoveries see and

UNG staff member dr. G. Zaharijas has been a member of the LAT collaboration since the launch of the satellite. She has worked mainly on the search for feeble signals of dark matter annihilation or decay in the LAT data.