NASA Logo, National Aeronautics and Space Administration
NASA Space Science Data Coordinated Archive Header

Fermi Gamma-ray Space Telescope



The Fermi Gamma-ray Space Telescope, or Fermi, (formerly the Gamma-ray Large Area Space Telescope, or GLAST) mission is designed to survey gamma rays from astronomical sources in the energy range from 10 keV to over 300 GeV.

The scientific objectives are to: (1) explore the most extreme environments in the universe; (2) search for signs of new laws of physics and understand the composition of dark matter; (3) study the acceleration of relativistic velocity jets of material by black holes; (4) detect and collect data on gamma-ray bursts; and, (5) help gain a better understanding of other cosmic phenomena, such as solar flares, pulsars, and the origin of cosmic rays.

Fermi carries two primary instruments, the Large Area Telescope (LAT) designed to observe gamma-ray sources over the energy range from 20 MeV to over 300 GeV, and the GLAST Burst Monitor (GBM), which will view the entire sky not occulted by Earth and detect gamma-ray bursts with an energy coverage from about 10 keV to 30 MeV.

Alternate Names

  • 33053
  • Fermi
  • Gamma-ray Large Area Space Telescope

Facts in Brief

Launch Date: 2008-06-11
Launch Vehicle: Delta II
Launch Site: Cape Canaveral, United States
Mass: 4303 kg
Nominal Power: 3122 W

Funding Agency

  • National Aeronautics and Space Administration (United States)


  • Astronomy

Additional Information

Questions and comments about this spacecraft can be directed to: Coordinated Request and User Support Office



NameRoleOriginal AffiliationE-mail
Dr. Steven M. Ritz, Jr.Project ScientistNASA Goddard Space Flight

Other Sources of Fermi (GLAST) Information/Data

Fermi project page (NASA GSFC)

[] NASA Logo -