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About this Episode
In this episode, I take you on a journey beyond Neptune to unravel the mystery and controversy surrounding Pluto. Once hailed as the ninth planet, Pluto's status has undergone dramatic changes that have left many scratching their heads and others raising their voices in protest. From its discovery in 1930 to the stunning revelations of the New Horizons mission, Pluto’s tale is far more compelling than we often give it credit for.
The History of Pluto’s Discovery
I talk about how Pluto was first spotted in 1930, thanks to the work of Clyde Tombaugh and his collaboration with Percival Lowell. It’s fascinating to hear how an 11-year-old girl from England named this faraway world after the Roman god of the underworld.
The Planetary Criteria and the 2006 Demotion
The IAU’s three-point definition of a planet reshaped our understanding of what constitutes one. I walk through these criteria and explain why Pluto, despite its charm and unique features, didn’t make the cut.
Revelations from New Horizons
Launched just before Pluto was demoted, NASA’s New Horizons mission gave us the first close-up look at this icy world in 2015. I highlight the heart-shaped glacier, towering mountains, and the possibility of cryovolcanism—making it clear Pluto is anything but boring.
The Company Pluto Keeps
Pluto isn’t alone in the outer solar system. I introduce other fascinating dwarf planets like Eris, Haumea, Makemake, and Ceres. Each of these has a unique story, and together they challenge what we think we know about planets.
The Bigger Picture
Finally, I reflect on what this debate means for science and public curiosity. Pluto's journey from planet to dwarf planet reminds us that science is always evolving and full of surprises.
Takeaways:
This episode is a celebration of curiosity and discovery. Whether you still consider Pluto a planet or not, one thing is clear—it has captured our imagination. Understanding Pluto and its companions in the Kuiper Belt deepens our appreciation of the complex and ever-changing universe we live in. I encourage listeners to go look at the photos from New Horizons and see this icy, distant world with new eyes.
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Jill’s Links
By choosing to watch this video or listen to this podcast, you acknowledge that you are doing so of your own free will. The content shared here reflects personal experiences and opinions and is intended for informational and inspirational purposes only. I am not a licensed healthcare provider, psychiatrist, or counselor. Any advice or suggestions offered should not be considered a substitute for professional medical or mental health advice. You are solely responsible for any decisions or actions you take based on this content.
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No transcript available for this episode.
