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Is the Universe Twice As Old As We Thought?

Is the universe as old as we think it is? Neil deGrasse Tyson and comedian Chuck Nice explain dark matter, the tired light hypothesis, and fluctuations in the cosmic microwave background with cosmologist, David Spergel. What happens when dark matter falls into a black hole? We explore vacuum energy, dark energy, and Hawking Radiation. Learn about the resurrection of the tired light hypothesis, redshifting, and whether it changes our understanding of the age of the universe. We also break down the shape of the universe and our cosmic microwave background. Get the NEW StarTalk book, 'To Infinity and Beyond: A Journey of Cosmic Discovery' on Amazon: https://amzn.to/3PL0NFn Support us on Patreon:   / startalkradio   FOLLOW or SUBSCRIBE to StarTalk: Twitter:   / startalkradio   Facebook:   / startalk   Instagram:   / startalk   About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #neildegrassetyson Timestamps 00:00 - Could Dark Matter Be Released as Hawking Radiation? 3:48 - Is The Universe Older Than We Thought? 10:35 - The Size and Shape of the Universe