Check out this article from The New York Times. Because I'm a subscriber, you can read it through this gift link without a subscription.

The Cosmos Is Thrumming With Gravitational Waves, Astronomers Find

Radio telescopes around the world picked up a telltale hum reverberating across the cosmos, most likely from supermassive black holes merging in the early universe.

https://www.nytimes.com/2023/06/28/science/astronomy-gravitational-waves-nan...

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