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In praise of mid-sized planets
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
View all episodes
By ABC Australia
3
44 ratings
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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