Should We Have 100+ Planets in Our Solar System?...
Under a size cutoff of 10,000 kilometers,... ...t back in. This time, in an effort spearheaded by Kirby Runyon of Johns Hopkins University, Pluto wants itself a... ...its 100 closest pals to be called planets. Runyon proposed that a planet is redefined to focus on i... ...upcoming Lunar and Planetary Science...
https://www.neatorama.com/2017/03/21/Should-We-Have-100-Planets-in-Our-Solar-System/
