We're exploring the secrets of the Universe in this episode. Cosmologist and Astroparticle Physicist Sophia Gad-Nasr joins us. We talk how the Universe began, why there could be more than one of you and the latest on the search for dark matter. Then, John Shull discovers Pluto isn't a star. And we debate the Top 5 Planets.
Sophia Gad-Nasr: 01:53
John Shull: 31:18
Top 5 Planets: 47:47
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