"Exploring Ultralow Frequency Gravitational Waves"

Physicists have developed a method to detect ultralow frequency gravitational waves, potentially unlocking the secrets of early supermassive black hole mergers. These waves, with frequencies as low as 10 picohertz, are 100 times slower than any previously measured gravitational waves. By analyzing pulsar data, researchers hope to differentiate between the origins of these waves, whether from supermassive black hole mergers or cataclysmic events in the early universe, shedding light on cosmic history.