“[Charon is] half Pluto’s size and 12 percent of its mass.” Our moon, for comparison, is about 27 percent of Earth’s size. (But that’s still closer to Charon and Pluto than other moon ...

Far from being flat and boring, Pluto seemed to be full of mountains, plains and maybe even "snow". By measuring the size of the shadows, we could estimate the height of these peaks at over 4,000m ...

roughly the size of Arizona from north to south. Pluto was discovered in 1930 by Clyde Tombaugh while he worked at Lowell Observatory in Flagship, Arizona. Sputnik Planitia is a white basin ...

“[Charon is] half Pluto’s size and 12 percent of its mass.” Our moon, for comparison, is about 27 percent of Earth’s size. (But that’s still closer to Charon and Pluto than other moon ...

And a number of other TNOs have moons of great size in comparison to their parent worlds. Denton says her team's findings could help explain why Pluto and Charon have surprisingly amounts of ...

The theory could explain how the dwarf planet (yeah, we wish Pluto was still a planet, too) could snare a moon that is around half its size. The team behind this research thinks that two frigid worlds ...

The report, published in “Nature Geoscience,” describes how the minuscule dwarf planet could lure in Charon, a space rock nearly half its size, to orbit. The authors suggest that Pluto and ...

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 to its parent planet in our solar system,” NASA notes.