Neil deGrasse Tyson on Photons and Relativity

Are photons really timeless? Watch astrophysicist Neil deGrasse Tyson blow comic co-host Chuck Nice's mind in this Cosmic Query about photons, Einstein's theory of relativity, neutrinos and more. Enjoy this Behind the Scenes from StarTalk Radio, which was shot during the recording of our episode, "Cosmic Queries: Time-Keeping." If you'd like to listen to the full podcast, click here: http://www.startalkradio.net/show/cos.... If you love StarTalk Radio, don't miss out on any StarTalk news. Sign up for our free newsletter: http://www.startalkradio.net/newslett...

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