NANOGrav 12.5-year data set

The NANOGrav 12.5-year data set is a collection of observations from a network of precisely monitored pulsars—extremely regular cosmic clocks. Over more than a decade, they tracked tiny variations in pulsar signals to detect gravitational waves—ripples in spacetime caused by massive cosmic events. This extensive data improves our ability to identify these waves, especially low-frequency ones from gigantic sources like supermassive black hole mergers. While no definitive detection has been announced yet, the data enhances understanding of the universe's most energetic processes and helps push the boundaries of astrophysics.