Gravitational WavesGravitational WavesRevolutionize Astronomywaves.cosmic expansion through gravitationalNew findings improve measurements ofCosmology and Nongalactic AstrophysicsGravitational Waves: A New Tool for AstronomyScientists are using gravitational waves to learn about the universe's expansion.2025-10-17T17:29:00+00:00 ― 5 min read