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

January 07, 2026 Universe Today

X-Ray Spectra Could Help Reveal Dark Matter in Galaxy Clusters
By Matthew Williams (https://ift.tt/fPQ7JjL)

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.

January 8, 2026 at 03:39AM
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