Celebrate the 18th anniversary of downgrading Pluto to a "dwarf planet"

Jennifer Sandlin

Pluto and Charon. From the images released by NASA/New Horizons on July 15, 2015. Image from Wikimedia Commons: https://commons.wikimedia.org/wiki/File:Hydra,_Charon_and_Pluto_%2819540320858%29.jpg

I grew up when Pluto was a planet. But, as you no doubt know, 18 years ago, on August 24, 2006, poor Pluto was downgraded from a regular ol' planet planet to …