Gravitational waves create a 'cosmic symphony' that scientists are tuning into - National Science Foundation

Based on his Theory of General Relativity,in 1915 Albert Einstein predicted the existence of gravitational waves,which are ripples in spacetime caused by massive cosmic events.Their existence wasn't verified until 2016 by the Laser Interferometer Gravitational-Wave Observatory (LIGO).Additionally,a network of two radio telescopes at Arecibo,Puerto Rico and Green Bank,West Virginia monitoring pulsars,which are highly magnetized,rapidly rotating neutron stars,were successfully enlisted in the search for gravitational waves.It is the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) sponsored by the National Science Foundation,and reported the first results of the project in 2023,the detection of background gravitational waves based on more than 15 years of radio telescope data.