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Friday, October 16, 2026 · UTC
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Study finds 84 unknown X-ray sources in six galaxies

A Nature Astronomy study reports 84 X-ray sources of unknown nature in six galaxies, including Andromeda and M101.

Luisa Marconi
Senior Space Correspondent
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A study published in Nature Astronomy has identified 84 X-ray sources in six galaxies, including Andromeda and M101, whose nature is unknown.[1]