Like many people, I grew up in a solar system of nine planets. It’s the same solar system we live in now, of course, but the definition of a “planet” changed in 2006 to exclude poor little Pluto and its frosty kin. That was before we’d even seen the little ice ball up close, but New Horizons paid it a visit in 2015. Since then, an increasingly vocal minority of scientists has suggested that maybe kicking Pluto out of the planet club was a mistake. A study from a team of noted astronomers soon to be published in the journal Icarus lays out the argument for readmitting Pluto. However, it’ll bring a lot of friends.