Pluto at 90: how Clyde Tombaugh discovered a new world

The latest episode of Radio Astronomy marks 90 years since the discovery of Pluto

This episode we mark the 90th anniversary of Pluto’s discovery by exploring the life of US astronomer Clyde Tombaugh, and take a look at the Pluto’s rise and fall as the 9th Solar System planet.

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Plus, we examine a recent International Astronomical Union campaign that saw 112 countries around the world name newly-discovered exoplanets.

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If the above embed isn’t working, you can find the podcast on Radio Astronomy’s Acast or Spotify pages.