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  2. Gamma-ray astronomy - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_astronomy

    Gamma-ray astronomy is a subfield of astronomy where scientists observe and study celestial objects and phenomena in outer space which emit cosmic electromagnetic radiation in the form of gamma rays, [nb 1] i.e. photons with the highest energies (above 100 keV) at the very shortest wavelengths.

  3. List of space telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_space_telescopes

    Gamma-ray telescopes collect and measure individual, high energy gamma rays from astrophysical sources. These are absorbed by the atmosphere, requiring that observations are done by high-altitude balloons or space missions. Gamma rays can be generated by supernovae, neutron stars, pulsars and black holes.

  4. Fermi Gamma-ray Space Telescope - Wikipedia

    en.wikipedia.org/.../Fermi_Gamma-ray_Space_Telescope

    The Fermi Gamma-ray Space Telescope (FGST, [3] also FGRST), formerly called the Gamma-ray Large Area Space Telescope (GLAST), is a space observatory being used to perform gamma-ray astronomy observations from low Earth orbit.

  5. Compton Gamma Ray Observatory - Wikipedia

    en.wikipedia.org/wiki/Compton_Gamma_Ray_Observatory

    The Compton Gamma Ray Observatory (CGRO) was a space observatory detecting photons with energies from 20 keV to 30 GeV, in Earth orbit from 1991 to 2000. The observatory featured four main telescopes in one spacecraft, covering X-rays and gamma rays , including various specialized sub-instruments and detectors.

  6. High Energy Stereoscopic System - Wikipedia

    en.wikipedia.org/wiki/High_Energy_Stereoscopic...

    The four 12 m telescopes began operation in 2004, with the 28 m telescope added as an upgrade (called H.E.S.S. II) in 2012. [1] As with other gamma-ray telescopes, H.E.S.S. observes high energy processes in the universe. Gamma-ray producing sources include supernova remnants, active galactic nuclei and pulsar wind nebulae.

  7. Great Observatories program - Wikipedia

    en.wikipedia.org/wiki/Great_Observatories_program

    During its High Energy Astronomy Observatory Program in 1977, NASA announced plans to build a "great observatory" for gamma-ray astronomy. The Gamma Ray Observatory (GRO), renamed Compton Gamma-Ray Observatory (CGRO), was designed to take advantage of the major advances in detector technology during the 1980s. Following 14 years of effort, the ...

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