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Pluto and its five moons
Pluto and its moons, Charon, Hydra, Nix, Kerberos, and Styx

NASA, ESA, and M. Showalter (SETI Institute)

This Hubble Space Telescope image shows five moons orbiting the distant, icy dwarf planet Pluto. Pluto and its bright inner moon, Charon, were observed with a short exposure, while the fainter, outer moons required a longer exposure time.