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When is a planet not a planet? When it gets downgraded after 75 years, apparently. But was Pluto’s fate a mistake by the IAU, or an example of science in action? Marcos Huerta joins Antony to talk Kuiper belt objects, the New Horizons probe, and arbitrary astronomical definitions.
"Pluto"
Antony Johnston with Marcos Huerta
4.8
6262 ratings
When is a planet not a planet? When it gets downgraded after 75 years, apparently. But was Pluto’s fate a mistake by the IAU, or an example of science in action? Marcos Huerta joins Antony to talk Kuiper belt objects, the New Horizons probe, and arbitrary astronomical definitions.
"Pluto"
Antony Johnston with Marcos Huerta
620 Listeners
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