Refining the 21-cm SignalRefining the 21-cm SignalSearchearly Universe's hydrogen gas.New models improve measurements of theCosmology and Nongalactic AstrophysicsNew Insights into the 21-cm Signal from the Early UniverseResearchers use advanced models to refine our understanding of the Universe's first stars.2025-06-22T09:49:09+00:00 ― 5 min read