AaS! 134: Is There a Fifth Force of Nature?

Are there more than four forces of nature? Is dark matter connected to dark energy? What the heck are dark photons? I discuss these questions and more in today's Ask a Spaceman!

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Music by Jason Grady and Nick Bain. Thanks to Cathy Rinella for editing.

Hosted by Paul M. Sutter, astrophysicist and the one and only Agent to the Stars (http://www.pmsutter.com).