Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

So things stood for 65 years. Although Pluto's orbit was more elongated than the other planets' (and even crossed the orbit of Neptune—not the kind of thing you would expect a decent planet to ...

Still that date will be one to circle on cosmic calendars. It takes Pluto slightly over 248 Earth years to orbit the sun, ...

a moon that is half the size of Pluto, came to orbit the dwarf planet. Traditional theories involving debris or gravitational pull did not seem to fit the unusual size ratio between Pluto and Charon.

An curved arrow pointing right. In this video, NASA describes a new kind of fusion powered spacecraft that could reach Pluto, orbit it, and even land on it. Video courtesy of NASA. Follow Tech ...

Pluto was once called the ninth planet, but in 2006, scientists changed its status to a dwarf planet. A planet must clear its orbit of other objects, but Pluto shares its space with many small icy ...

Pluto and Charon orbit a shared center of mass, much like figure skaters spinning together, a result of their unique collision process. The collision deposited internal heat into both bodies ...