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Submission + - X-rays From Other Galaxies Could Emanate From Particles of Dark Matter (sciencemag.org)

sciencehabit writes: X-rays of a specific wavelength emanating from the hearts of nearby galaxies and galaxy clusters could be signs of particles of dark matter decaying in space, two independent teams of astronomers report. If that interpretation is correct, then dark matter could consist of strange particles called sterile neutrinos that weigh about 1/100 as much as an electron.
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X-rays From Other Galaxies Could Emanate From Particles of Dark Matter

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