Why Was Pluto Kicked Out of the Solar System?

Why Was Pluto Kicked Out of the Solar System? 

For advanced readers, parents, and educators interested in exploring this idea more here are a few resources to get started with:

Moons are planets: Scientific usefulness versus cultural teleology in the taxonomy of planetary science: https://www.sciencedirect.com/science/article/pii/S0019103521004206 (This paper gives an excellent overview of the history and current usage of the term planet.)

Geophysical Planet Definition: https://www.hou.usra.edu/meetings/lpsc2017/pdf/1448.pdf

News article about planetary scientist letter to IAU: https://spaceref.com/press-release/planetary-scientists-and-astronomers-oppose-new-planet-definition/

-----------------------------------------------------------------------------

Send questions to [email protected]. If you would like your name included with the question, please include its pronunciation.