Charon is the largest moon of the dwarf planet Pluto ... are only 12,176 miles (19,596 km) apart. Pluto and Charon are tidally locked to each other, meaning they always show the same face to ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't ...

For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical ...

The theory could explain how the dwarf planet (yeah, we wish Pluto was still a planet ... Rather than mutually obliterating each other, the two bodies were united as a spinning "cosmic snowman." These ...

The other four moons—Nix, Hydra, Kerberos and Styx—are much smaller than Charon. One idea is that Pluto got its moon system when a massive object smashed into the dwarf planet. The resulting ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

Pluto, our planet of profound change and ultimate reckoning, has set up shop in Aquarius, and the energy of the dwarf daddy of death ... in daily life. On the other hand, outer planets move ...

On this date, Jan. 19, 2006, the first probe ever destined to visit Pluto, its moons and other Kuiper belt objects ... its nine-year journey to the icy dwarf planet. This mission marked the ...

Alongside Pluto, Eris was also classified as a dwarf planet under the new criteria ... the door for further studies of the Kuiper Belt and other distant objects. Roopashree Sharma is a seasoned ...