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Space

Gamma rays from the sun are acting weird and nobody knows why

By Leah Crane

24 April 2018

New 女生小视频. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

The Fermi Gamma-ray Space Telescope

NASA

There鈥檚 something wrong with the sunshine. A nine-year survey of the sun鈥檚 gamma rays has turned up two surprises: an unexpected dip in low-energy gamma rays, and far more high-energy gamma rays than theory predicts. And we’re not sure what’s going on.

鈥淭he sun is much weirder than we thought,鈥 says at Ohio State University in Columbus. He and his colleagues examined data from the Fermi Gamma-ray Space Telescope taken from 2008 to 2017.

Gamma rays are constantly being produced in the sun as high-energy protons from cosmic rays…

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