Back in the 1980’s, a now-defunct magazine called Science Digest held a contest to name Planet X — the still-undiscovered world that astronomers believed might lie out beyond Pluto. One of the best ...

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Finally, a family portrait of Pluto is beginning to emerge! For the first time ever, astronomers have captured two never-before-photographed moons orbiting Pluto. NASA's New Horizons spacecraft ...

The International Astronomical Union (IAU) announced Tuesday that names voted on by the public had been accepted for Pluto's fourth and fifth moons. Kerberos and Styx, formerly known as P4 and P5, ...

MOUNTAIN VIEW, Calif. — If you have ever wanted a chance to make a name for yourself in astronomy, you now have an opportunity. Astronomers who were part of NASA’s New Horizons mission have discovered ...

Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.