The names Nix and Hydra have been approved for the two small satellites of Pluto discovered in May 2005. The International Astronomical Union (IAU), the internationally recognized authority for ...

While Pluto’s largest moon Charon has grabbed most of the lunar spotlight, two of Pluto’s smaller and lesser-known satellites are starting to come into focus via new images from the New Horizons ...

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Assembled into a seven-frame movie, the new images provide the spacecraft's first extended look at Hydra (identified by a yellow diamond ) and its first-ever view of Nix (orange diamond). Credit: NASA ...

In a historic moment, NASA has unveiled the first truly close-up photos humanity has ever seen of Pluto and two of its moons, thanks to the New Horizons craft -- and they're astounding. Share on ...