Podcasts Science Ask a Spaceman! AaS! 20: How much light is in the universe?

AaS! 20: How much light is in the universe?

Published: Nov. 17, 2015, 1 p.m.

How much light is in the universe? What\u2019s a \u201cphoton\u201d? What\u2019s the brightest thing out there? I discuss these questions and more in today's Ask a Spaceman!

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Follow all the show updates at askaspaceman.com, and help support the show at patreon.com/pmsutter!

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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.