Barycenter Memes

The celestial size queens of our solar system! Earth and Pluto bonding over their disproportionately large satellite companions. While most planets have sensibly-sized moons, these two are practically in binary relationships. Earth's moon is about 1/4 its diameter (absolutely massive compared to most planet-moon ratios), while Pluto's Charon is so big that their barycenter—the point they orbit around—actually lies outside of Pluto itself. It's less "I have a moon" and more "we're cosmic dance partners with boundary issues." The rest of the planets are just watching like, "get a room already."