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The leading theory shared by the astronomers is that these gravitational waves are coming from pairs of supermassive black holes sitting at the centre of galaxies.
"We're starting to open up this new window on the universe," one astrophysicist said.
Scientists reported evidence for a new class of gravitational waves, likely created by merging supermassive black holes.
Scientists from multiple countries, including the United States, India, Australia, and China, have made a groundbreaking discovery regarding gravitational waves. They have confirmed the existence of a cosmic 'background hum,' a long-theorised form of gravitational waves that permeate the universe.
A 15-year search reveals the first evidence of a cosmic 'gravitational wave background' emitted by ancient, colliding black holes.