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Pluto is tiny, icy, and used to be the ninth planet in the solar system. Used to be. So why isn’t Pluto a planet anymore?

Join Molly and co-host Momo as they learn Pluto’s history, talk to a NASA scientist studying Pluto today and even hear from the planet itself. All that plus a nifty new mystery sound!

This episode was sponsored by:

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*****
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Why isn’t Pluto a planet anymore?

Brains On! Science podcast for kids