Wednesday, January 7, 2026

X-Ray Spectra Could Help Reveal Dark Matter in Galaxy Clusters

The X-ray Imaging and Spectroscopy Mission (XRISM) studies the hot, energetic universe by capturing X-rays to reveal details about galaxy clusters, black holes, supernova remnants and the formation of cosmic structures. Credit: NASA

A study published in the Astrophysical Journal Letters demonstrates that decaying dark matter (DDM) can potentially be detected in unidentified X-ray emission lines in the spectra of galaxy clusters.



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