9 years ago
How Big Is Pluto? New Horizons Settles Decades-Long Debate
Pluto is larger than we thought! Data from one of the tools on New Horizons has found that the dwarf planet is 1,473 miles in diameter. We have also learned the size of Pluto’s smaller moons: Nix is approximately 20 miles across, while Hydra is around 30 miles.
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