https://www.quantamagazine.org/an-enormous-gravity-hum-moves-through-the-universe-20230628/#:~:text=Astronomers%20have%20found%20a%20background,can't%20be%20ruled%20out.
Astronomers have found a background din of exceptionally long-wavelength gravitational waves pervading the cosmos. The cause? Probably supermassive black hole collisions, but more exotic options can’t be ruled out.
https://www.svt.se/nyheter/utrikes/ud-fordomer-koranbranningar
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