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Sensing suns

Astronomers accurately measure the temperature of red supergiant stars.

Mar 1st, 2021

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Astrophysicists propose that all high-energy cosmic neutrinos are born by quasars

Scientists studied the arrival directions of astrophysical neutrinos with energies more than a trillion electronvolts (TeV) and came to an unexpected conclusion: all of them are born near black holes in the centers of distant active galaxies powerful radio sources. Previously, only neutrinos with the highest energies were assumed to be obtained in sources of this class.

Feb 22nd, 2021

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