NASA Logo in the header
Sciences and Exploration Directorate 
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Operational

Fermi Gamma-ray Space Telescope

The Fermi Gamma-ray Space Telescope is opening a wide new window on the universe. Gamma rays are the highest-energy form of light, and the gamma-ray sky is radically different from the one we perceive with our own eyes. Fermi is advancing our understanding of a broad range of topics, including supermassive black holes, dark matter studies, the physics of pulsars and gamma-rays bursts, and the origin of cosmic rays. The mission observes high-energy gamma rays over a broad range of energies as well as more focused gamma-ray bursts. Fermi was launched in 2008.

Organization
Launch Date

June 2008

Class

--

Website

Key Staffs

The Fermi Gamma-ray Space Telescope is opening a wide new window on the universe. Gamma rays are the highest-energy form of light, and the gamma-ray sky is radically different from the one we perceive with our own eyes. Fermi is advancing our understanding of a broad range of topics, including supermassive black holes, dark matter studies, the physics of pulsars and gamma-rays bursts, and the origin of cosmic rays. The mission observes high-energy gamma rays over a broad range of energies as well as more focused gamma-ray bursts. Fermi was launched in 2008.

Related Publications

2025. "Solar Cycle Variation of Sustained Gamma-ray Emission Events from the Sun and Related Energetic Events.", Book of Proceedings Solar Influences on the Magnetosphere, Ionosphere and Atmosphere, 17 24-33 [10.31401/ws.2025.proc.04] [Proceedings]

2025. "Multispacecraft Observations of the 2024 September 9 Backside Solar Eruption That Resulted in a Sustained Gamma Ray Emission Event.", Solar Physics, 300 (8): 120 [10.1007/s11207-025-02526-9] [Journal Article/Letter]

2024. "Recent Observations of Peculiar Gamma-Ray Bursts Using the 3.6-m Devasthal Optical Telescope (DOT).", Bulletin de la Société Royale des Sciences de Liège, 683-699 [10.25518/0037-9565.11838] [Journal Article/Letter]

2023. "Prompt Emission and Early Optical Afterglow of Very-high-energy Detected GRB 201015A and GRB 201216C: Onset of the External Forward Shock.", The Astrophysical Journal, 942 (1): 34 [10.3847/1538-4357/aca414] [Journal Article/Letter]

2022. "Multiwavelength study of the luminous GRB 210619B observed with Fermi and ASIM.", Monthly Notices of the Royal Astronomical Society, 519 (3): 3201-3226 [10.1093/mnras/stac3629] [Journal Article/Letter]

Contact Us

For general inquiries about the Sciences and Exploration Directorate.

Jocelyn Lynch

Project Support Specialist

301-286-6066 jocelyn.m.lynch@nasa.gov
Ellie Jeffries

Project Support Specialist

301-286-6066 ellie.jeffries@nasa.gov
Technical issues with this website may be reported to ben.pelletier@nasa.gov.
General inquiries about the scientific programs at NASA's Goddard Space Flight Center may be directed to the Center Office of Communications at 1.301.286.8955.