Discuss the current definition of a planet.

1. Forum

TOPIC 1:

Discuss the current definition of a planet.

The resources listed below are good places to start and further research is encouraged.

What makes a planet a planet? YouTube link, https://youtu.be/8x06kN4ZMOE, The Verge, December 2016
Explanation of International Astronomical Union: https://www.iau.org/public/themes/pluto/