What is Pluto's atmosphere?

Answer 1

Pluto's atmosphere is mainly made of nitrogen, methane, and carbon monoxide, but is less than 25-millionths the density of Earth's. The gases exist mostly as frozen solids on the planet's frigid surface, and only thaw when the planet is closest to the Sun.

Answer 2

Pluto's atmosphere is composed mainly of nitrogen, with small amounts of methane and carbon monoxide. It is very thin, with a pressure about 100,000 times less than Earth's atmosphere. The atmosphere gets thicker as Pluto comes closer to the Sun and some of the gases on its surface sublimate into gas.

Answer 3

Pluto's atmosphere consists of primarily methane with smaller amounts of carbon monoxide and nitrogen.

Answer 4

Pluto has a very thin atmosphere made mostly of nitrogen with minute amounts of methane and carbon monoxide.