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 ...

In June 2005, two small moons were discovered orbiting Pluto, much farther out than its larger moon, Charon.For a year, the discovery team, led by planetary astronomer Alan Stern of the Southwest ...

New Horizons also returned brand new photos of Pluto's little moons Nix and Hydra. Nix is just 26 miles long and Hydra 34 miles. Both have irregular shapes because they possess too little material ...

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 ...

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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 ...

MOUNTAIN VIEW – Eight months after its encounter with the New Horizons spacecraft, Pluto continues to surprise the scientists who study this distant world. Pluto and its largest moon Charon comprise ...

(NEW YORK) — Three billion miles and nearly 10 years of travel led up to the moment NASA’s New Horizons probe zoomed past Pluto Tuesday, collecting information to send back to Earth about the dwarf ...

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During 2005-2012, images from Hubble Space Telescope (HST) revealed four moons orbiting Pluto-Charon (Weaver et al 2006, Showalter et al 2011, 2012). Although their orbits and geometric shapes are ...