What is Pluto's composition?

Answer 1

It is believed the dwarf planet Pluto is probably 60-70 percent rock and 30-40 percent ice. The atmosphere is likely 90 percent nitrogen with the other 10 percent being made up of molecules such as methane.

Answer 2

Pluto's composition is primarily made up of rock and ice, including water ice, methane ice, and nitrogen ice. It also has a thin atmosphere primarily composed of nitrogen, with some traces of methane and carbon monoxide. The dwarf planet's surface is covered with highly varied terrains, including mountains, plains, and icy plains.

Answer 3

Its internal composition is very hard to determine. It is estimated to be about 50%-70% rock and 30%-50% ice.