New Light on Dark Matter

Julian Munoz and his collaborator, Avi Loeb of the Harvard-Smithsonian Center for Astrophysics (CfA), explored the possibility that charged dark matter particles interact with normal matter by electromagnetic force. Their work dovetails with a recently announced result from the Experiment to Detect the Global EoR (Epoch of Reionization) Signature collaboration, known as EDGES. In February, scientists from this project said they had detected the radio signature, and possible evidence for interaction between dark matter and normal matter, from the first generation of stars. Some astronomers quickly challenged the EDGES claim. Meanwhile, Munoz and Loeb were already looking at the theoretical basis underlying it.

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