Gravitational Waves andGravitational Waves andBlack Hole Mergerssupermassive black holes.Research unveils faint signals fromCosmology and Nongalactic AstrophysicsNew Insights into Gravitational Waves at Nanohertz FrequenciesScientists detect faint gravitational waves from merging supermassive black holes.2025-06-02T02:12:12+00:00 ― 6 min read