![Pluto and its large moon, Charon, are at image center. White ovals indicate the orbits of each of the small moons Hubble discovered. Bright, blue-white blobs, and points of light are the individual moons.](https://science.nasa.gov/wp-content/uploads/2023/04/hubble-discoveries-highlights-pluto-moons-jpg.webp?w=4096&format=png)
Hubble Discovers Four Pluto Moons
Hubble discovered Pluto’s four small moons, Nix, Hydra, Styx, and Kerberos. This is a composite of two images of the Pluto system taken by Hubble in July 2012. The blue areas are from a long exposure used to capture the tiny outer moons, but which greatly oversaturated Pluto and Charon. The dark central vertical band is from a shorter exposure designed to show Pluto and Charon more clearly. The diameters of Pluto and its moons are not to scale.
Credits: NASA, ESA, and M. Showalter (SETI Institute)
Image CreditNASA, ESA, and M. Showalter (SETI Institute)
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