Mind-blowing fact: Pluto is smaller than the United States. The dwarf planet's diameter is just 2,377 km —…

Mind-blowing fact: Pluto is smaller than the United States. The dwarf planet's diameter is just 2,377 km — barely more than half the distance from California to New York (≈4,500 km). No wonder it got demoted from planet status in 2006! Did you know Pluto was this tiny? 🪐