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The Science Show - Separate stories podcast
VetenskapNaturvetenskap

In praise of mid-sized planets

13 min•6 mars 2026

Erik Petigura is a professor of physics and astronomy at UCLA who specialises in discovering planets smaller than giants like Neptune and bigger than Mars and Earth.

Our Solar System has none of these intermediate planets, so what's the attraction?

Guest

Erik Petigura

Professor of physics and astronomy 

UCLA 

Presenter

Robyn Williams

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