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The Fermi telescope is specially designed to capture gamma rays, and the team was surprised to find that it was spitting out gamma rays at completely unexpected energies.
BBC: Gamma rays from nova explosion surprise astronomers
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The most popular theory holds that dark matter is made up of relatively heavy particles which, when they encounter one another, "annihilate" with a flash of light that the Fermi telescope can see.
BBC: Fermi telescope may change to dark matter hunting
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Users of the Fermi space telescope have now confirmed these observations, which were first made by amateur astronomers.
BBC: Gamma rays from nova explosion surprise astronomers
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"I'm in shock and awe at how bright it is, " said Julie McEnery, project scientist for the Fermi gamma-ray telescope.
BBC: Blazar Markarian 421's flare-up is cosmic coincidence
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Many Americans recognize the unsurpassed science and inspiration that have come from the Hubble Space Telescope over the past two decades, as well as from its less famous sister satellites like the Chandra X-ray Observatory, the Spitzer Space (Infrared) Telescope and the Fermi gamma-ray observatory.
CNN: Space is still the new frontier
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Now, an international team of astronomers has trained the Fermi space-based gamma ray telescope on V407 Cygni, a "binary" system comprising a white dwarf star and a red giant companion, 9, 000 light-years away.
BBC: Gamma rays from nova explosion surprise astronomers
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Julie McEnery, project scientist for the Fermi mission, said a deepening dark matter mystery has sparked the call for proposals to change the telescope's mission.
BBC: Fermi telescope may change to dark matter hunting