Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why ...

The fact Pluto's orbital axis is more or less perfectly aligned with Charon's highly suggests they were both spun out of the ...

The moon is so hefty that it influences Pluto’s spin. In fact, Pluto’s spin axis lies somewhere between the dwarf planet and Charon. Scientists occasionally refer to Charon and Pluto as a ...