Do We Need a New Theory of Gravity? – Quanta Magazine https://www.quantamagazine.org Illuminating science Mon, 16 Sep 2024 14:10:47 -0400 en-US hourly 1 https://wordpress.org/?v=6.2 Do We Need a New Theory of Gravity? https://www.quantamagazine.org/do-we-need-a-new-theory-of-gravity-20240829/ https://www.quantamagazine.org/do-we-need-a-new-theory-of-gravity-20240829/#respond Thu, 29 Aug 2024 13:35:49 +0000 https://www.quantamagazine.org/?p=140166 The post Do We Need a New Theory of Gravity? first appeared on Quanta Magazine

]]> Observations of the cosmos suggest that unseen sources of gravity — dark matter — tug at the stars in galaxies, while another mysterious force — dark energy — drives the universe to expand at an ever-increasing rate. The evidence for both of them, however, hinges on assumptions that gravity works the same way at all scales. What if that’s not true? In this episode, theoretical physicist Claudia de...

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