Blue Dot 167 Apple Podcast: What is a Planet? December 13, 2019

In this episode, inspired by our good friend Alan Stern, the Principal Investigator for the New Horizons Spacecraft, we examine a question that has vexed astronomers, planetary scientists and 5th graders, for decades: " What exactly is a Planet ?" And more importantly, why should we care about definitions like this in science.

https://podcasts.apple.com/us/podcast/blue-dot-167-what-is-a-planet/id1070613910?i=1000459526070