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July 12, 2018

Approximately 20 observatories followed up on IceCube's Sept. 22, 2017, detection

On Sept. 22, 2017, NSF's IceCube Neutrino Observatory alerted the international astronomy community about the detection of a high-energy neutrino. Approximately 20 observatories on Earth and in space made follow-up observations, which allowed identification of what scientists deem to be a source of very high energy neutrinos, and thus, of cosmic rays. Besides neutrinos, the observations made across the electromagnetic spectrum included gamma-rays, X-rays, and optical and radio radiation. The observatories are operated by international teams involving a total of more than 1,000 scientists supported by funding agencies in countries around the world.

Credit: Nicolle R. Fuller/NSF/IceCube

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