Ep. 1: Pluto’s Planetary Identity Crisis

Pluto. It’s a planet, then it’s not. This week we review Pluto’s history, from discovery to demotion by the International Astronomical Union. Learn the 3 characteristics that make up a planet, and why Pluto now fails to make the grade. Download Episode 1: Pluto’s Planetary Identity Crisis (12.6 MB)




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Welcome to Astronomy Cast!

Astronomy Cast offers you a fact based journey through the cosmos. Each week Fraser Cain (Universe Today) and Dr. Pamela Gay (SIUE / Slacker Astronomy) take on topics ranging from the nearby planets to ubiquitous dark matter. Your questions can guide our discussion! Write us at questions@astronomycast.com and tell us what questions you want answered.




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