Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

What processes during the formation of Pluto's largest moon, Charon, potentially led to it having cryovolcanism, and even an internal ocean? This is what a recent study presented at the 56th Lunar and ...

Feel like something's gotta give in your daily life? That nagging inner voice telling you it's time to get crystal clear on ...

NASA's New Horizons probe flew closer to Pluto than any Earth-craft ever has Tuesday, sending back amazing photos of the dwarf planet. Photos of Pluto leading up to the New Horizons flyby Before June ...

Two years after New Horizons' historic flyby, NASA has released detailed new imagery of Pluto and its largest moon. Using data and digital elevation models, scientists crafted imagery of nitrogen ice ...

"Makemake is one of the largest and brightest icy worlds beyond Neptune, and its surface is dominated by frozen methane," ...

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 ...

Frankly, we don't keep up much with Pluto and its status as a planet or non-planet. It's kind of like when, as a young altar boy, the Catholic Church demoted a bunch of saints. We just rolled with the ...