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Reading:‘Surprising’ dark energy instrument results show Einstein was right about gravity.
Thanks to observations of the evolution of the universe over the past 11 billion years collected by the Dark Energy Spectrograph (DESI), general relativity has passed one of its most exacting tests.
Albert Einstein’s 1915 theory of general relativity remains humanity’s best explanation of gravity for the past 100 years. Cosmologists have used general relativity to model how the universe evolved—from its earliest moments to its current state—and to show how gravity brings small chunks of matter together to form vast galaxies and their clusters. But while general relativity has passed every test applied on a relatively small scale, few tests have challenged it on a very large scale.