Early universe dark matter born red hot before cooling
Los Angeles CA (SPX) Jan 14, 2026
Researchers at the University of Minnesota Twin Cities and Universite Paris-Saclay report that dark matter in the early universe may have started out moving at nearly the speed of light, challenging the long held assumption that it had to be born cold and slow. Their work suggests that the universe's dominant unseen matter component could have been incredibly hot at birth yet still cooled suffic
Researchers at the University of Minnesota Twin Cities and Universite Paris-Saclay report that dark matter in the early universe may have started out moving at nearly the speed of light, challenging the long held assumption that it had to be born cold and slow. Their work suggests that the universe's dominant unseen matter component could have been incredibly hot at birth yet still cooled suffic
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