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Cosmic Queries – JWST’s Primordial Galaxies with Wendy Freedman
StarTalk Radio
Einstein's Biggest Blunder
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The universe is speeding up in its expansion with time. That's something that actually was allowed in Einstein's general theory of relativity. But he rejected it because there was one no evidence that the universe was expanding at all. And so he, in fact, added something into his equations that forced the universe to be static. The cosmological constant came and went over time as people thought they found evidence for it. It wasn't until the late 1990s when it became possible to observe very distant supernovae that scientists realised what had happened.
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