Why isnt Pluto a planet anymore?
Pluto is tiny, icy, and used to be the ninth planet in the solar system. Used to be. So why isn\u2019t Pluto a planet anymore?
Join Molly and co-host Momo as they learn Pluto\u2019s history, talk to planetary scientist Kelsi Singer about NASA\u2019s New Horizons mission, and even hear from the planet itself. All that plus a nifty new mystery sound!
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