A 15-year study has provided more evidence of gravitationalwaves, including those at very low frequencies.
In the last decade, astronomers made a major discovery, confirming the existence of gravitational waves. These long-theorized ripples in spacetime are created when extremely massive bodies such as two black holes collide, creating shocks that spread out across the universe and can be detected from millions of light-years away.
When massive objects like black holes merge, the gravitational waves they give off can overlap and create a background “hum” that affects the pulsar timing. Recommended Videos The gravitational waves form a kind of background hum that can be studied to learn more about both black holes and the evolution of the universe. The strength of the hum suggests that there are many, many pairs of merging black holes out there — hundreds of thousands or even millions.
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