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The Man Who Discovered a Planet

Mar 20, 1980

Exactly 50 years ago, in 1930, the planet Pluto was discovered by a young research student named Clyde Tombaugh. Since that time Pluto has set puzzle after puzzle. It is smaller than expected; it has an unusual path: and it has a moon, Charon, which

Previous episodeE2 · Saturn: The Disappearing Rings Next episodeE4 · The Multiple Mirror Telescope

Seasons70

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Season 24 Episodes13

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Mapping the Sky

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Saturn: The Disappearing Rings

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E3Now viewing

The Man Who Discovered a Planet

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The Multiple Mirror Telescope

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Journey to the Centre of the Galaxy

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Kitt Peak Observatory: the Solar Telescope

Quasars

The Mapping of Venus

Meteor Crater

Autumn Equinox

The Scintars

Voyager I Reaches Saturn

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E13

The Quadrantids

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Episode Summary

"The Man Who Discovered a Planet" is episode 3 of The Sky at Night season 24. It aired on March 20, 1980.

Next: E4 · The Multiple Mirror Telescope Best of Season 24