Episode

Stuff You Missed in History Class

HowStuffWorks

Society & Culture, History

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Top 200 26
Society & Culture 7
History 1

Join Holly and Tracy as they bring you the greatest and strangest Stuff You Missed In History Class in this podcast by HowStuffWorks.com.

Pluto: The Demoted Dwarf Planet

July 22nd, 2013

Episode 571 of 1008 episodes

It was the only planet to have been discovered by an American, but it's no longer classified as a planet. Who found Pluto, and how did astronomers even know to look for the so-called Planet X on the edge of our solar system?

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