Pluto's bulk density is:
A) 3,400 kg/m³, comparable to our Moon's.
B) 2,100 kg/m³, similar to Callisto's mix of rock and ice.
C) 1,200 kg/m³, like Mimas, made of almost pure ice.
D) 700 kg/m³, like Saturn a mix of hydrogen and helium slush.
E) 400 kg/m³, like Comet Halley's nucleus, a ice ball with many gas pockets.

Question

Quizplus · Accepted Answer

Pluto's bulk density is estimated to be around 2,100 kg/m³ based on its mass and size. This is similar to the density of Callisto, one of Jupiter's moons, which is known to be made up of a mix of rock and ice. This suggests that Pluto also has a similar composition of rock and ice.

Pluto's Bulk Density Is