Fermi Gamma-ray Space Telescope
Fermi's Gamma-Ray Burst Monitor
wins 2018 Rossi Prize
Fermi GBM's Dr. Colleen Wilson-Hodge with neutron-star merger
Congratulations to Dr. Colleen Wilson-Hodge and the Fermi Gamma-Ray Burst Monitor team! The High-Energy Astrophysics Division of the American Astronomical Society has awarded them the 2018 Rossi Prize for their discovery of gamma rays coincident with a neutron-star merger gravitational wave event, confirming that short gamma-ray bursts are produced by binary neutron-star mergers.

What is Fermi?

General Dynamics C4 Systems - Artist Concept of Fermi The Universe is home to numerous exotic and beautiful phenomena, some of which can generate almost inconceivable amounts of energy. Supermassive black holes, merging neutron stars, streams of hot gas moving close to the speed of light ... these are but a few of the marvels that generate gamma-ray radiation, the most energetic form of radiation, billions of times more energetic than the type of light visible to our eyes. What is happening to produce this much energy? What happens to the surrounding environment near these phenomena? How will studying these energetic objects add to our understanding of the very nature of the Universe and how it behaves?

The Fermi Gamma-ray Space Telescope, formerly GLAST, is opening this high-energy world to exploration and helping us answer these questions. With Fermi, astronomers at long last have a superior tool to study how black holes, notorious for pulling matter in, can accelerate jets of gas outward at fantastic speeds. Physicists are able to study subatomic particles at energies far greater than those seen in ground-based particle accelerators. And cosmologists are gaining valuable information about the birth and early evolution of the Universe.

For this unique endeavor, one that brings together the astrophysics and particle physics communities, NASA has teamed up with the U.S. Department of Energy and institutions in France, Germany, Japan, Italy and Sweden. General Dynamics was chosen to build the spacecraft. Fermi was launched June 11, 2008 at 12:05 pm EDT.

Latest News

Jan 04, 2018

Preliminary LAT 8-year Point Source List

As a prelude to the forthcoming Fermi LAT 4FGL catalog, a preliminary list of sources (FL8Y) based on 8-years of integration and employing the up-to-date (PASS-8) calibrations and event selections has been made available to the community through the FSSC by the LAT instrument team. This release is primarily intended to support the preparation Cycle-11 Fermi Guest Investigator proposals. We stress its preliminary nature and strongly encourage users to carefully read the accompanying documentation.

Nov 28, 2017

Call for Fermi Cycle-11 Guest Investigator Proposals

The call for Fermi Cycle-11 Guest Investigator proposals has been officially issued by NASA Headquarters. Proposals are due on February 23, 2018 at 16:30 EST. Please refer to additional information provided on the Proposals section of this web site.

Oct 16, 2017

Fermi's GBM Spots Merging Neutron Stars

At 12:41 UT on August 17, 2017, the Gamma-ray Burst Monitor (GBM) on board NASA's Fermi Gamma-ray Space Telescope automatically triggered on a gamma-ray burst and classified it correctly, just as it does about 240 times per year. This particular trigger, however, had a unique friend: a near-simultaneous gravitational-wave detection from the LIGO-Virgo global network of interferometers.
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