Pluto discovered - Feb. 18, 1930 - a podcast by iHeartRadio & HowStuffWorks
from 2019-02-18T10:00
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On this day in 1930, junior astronomer Clyde Tombaugh discovered that Pluto was a planet. Learn even more about Pluto on the episode of Stuff You Missed in History Class, Pluto: The Demoted Dwarf Planet.
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