featureless ball on the fringes of the solar system, the spacecraft images revealed a geologically diverse world, with mountains, ice sheets, pits, cliffs, cracks, and valleys. Charon, its biggest ...

"Charon then begins its slow outward migration towards its current position." The team thinks the initial collision happened very early in solar system history, probably tens of millions of years ...

Charon. It started with a collision — one that didn’t destroy the two balls of rock and ice but spun them into the unmistakable shape of a snowman, until tidal forces separated them into their ...

Charon is unusual because it is the largest moon in the solar system compared with its parent body. In fact, Charon and Pluto are so similar in size that they are considered a double dwarf planet ...

But these theories didn’t account for the fact that Pluto and Charon may have more structural integrity as icy, rocky bodies on the frigid edge of the solar system. “Pluto and Charon are ...

"Charon is HUGE relative to Pluto, to the point where they are actually a binary," Denton explained. "It's half Pluto's size and 12% of its mass, which makes it much more similar to the Earth's moon ...