AaS! 20: How Much Light Is in the Universe?
Nov 17, 2015•30 min
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Episode description
How much light is in the universe? What's a "photon"? What's the brightest thing out there? I discuss these questions and more in today's Ask a Spaceman!
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Keep those questions about space, science, astronomy, astrophysics, and cosmology coming to #AskASpaceman on Twitter@PaulMattSutter and Facebook/PaulMattSutter for COMPLETE KNOWLEDGE OF TIME AND SPACE! Music by Jason Grady and Nick Bain.
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