Planetballs

Planetballs are circle-drawn characters in the Polandball universe, similar to countryballs. They represent planets, moons, dwarf planets, stars, star remnants, black holes, and even parallel universes. space proves and asteroids also appear but they aren't drawn in ball shape. They have been a little-known staple of Polandball since its founding on Krautchan, they can be crossed over with polandball comics (e.g: Sunball making a cameo in a comic about Germanyball & Swedenball).