(FGST, GLAST, Fermi Gamma-ray Space Telescope, Gamma-ray Large Area Space Telescope)
(satellite for studying gamma rays)
Fermi (i.e., the Fermi Gamma-ray Space Telescope or FGST,
formerly the Gamma-ray Large Area Space Telescope or GLAST)
is a NASA space telescope for observing gamma rays.
Fermi was launched in 2008, is still operational as of 7/2025,
and has the potential to continue operating for another decade or more.
USA budgeting efforts have chosen to cease funding its operation in 2026
even if it is operational.
Instruments:
Large Area Telescope (LAT, referred to as Fermi-LAT, used for the LAT All-sky Survey)