When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

We now know Pluto's mass is 0.2% of Earth's. Where does Charon's name come from? Christy suggested the name Charon after the mythological ferryman who carried souls across to the underworld.

New research suggests Pluto may have had a “kiss” with its largest moon billions of years ago in a harmless collision. The report, published in “Nature Geoscience,” describes how the ...

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

Amanda Kooser covers the quirky side of science and space. Pluto has five moons, but Charon stands out from the rest. Charon is half the size of Pluto, “making it the largest known moon relative ...

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