Hope for Pluto—Should We Re-Redefine Planets?
Hope for Pluto—Should We Re-Redefine Planets?  
Podcast: Planetary Radio: Space Exploration, Astronomy and Science
Published On: Wed Mar 08 2017
Description: Planetary geologist Kirby Runyon is lead author of an abstract that proposes a new, geophysical definition of what a planet is.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.