EPISODE · Mar 6, 2026 · 13 MIN
In praise of mid-sized planets
from The Science Show - Separate stories podcast · host Australian Broadcasting Corporation
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?GuestErik PetiguraProfessor of physics and astronomy UCLA PresenterRobyn Williams
What this episode covers
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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In praise of mid-sized planets
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