❓ why
Why does Pluto’s atmosphere escape into space?
Solar SystemPluto
Quick Answer
Pluto’s low gravity and weak atmosphere let gases leak away more easily, especially when sunlight warms the surface. Some molecules gain enough energy to drift off into space over time.
The Full Story
Pluto’s atmosphere is extremely thin, so gas molecules are weakly held by its small gravity. As sunlight warms Pluto’s surface, frozen nitrogen, methane, and carbon monoxide can sublimate into gas and feed that atmosphere. Because Pluto is small and far from the Sun, some molecules still gain enough speed to escape. NASA’s New Horizons mission showed Pluto has a surprisingly active atmosphere despite its tiny size, but it cannot retain gases like Earth or the giant planets can.
Key Facts
1.Pluto has weak gravity compared with the planets
2.New Horizons flew past Pluto in 2015
3.Atmospheric gases include nitrogen and methane
YouTube Angle
Suggested video title for this topic:
"How Pluto keeps leaking its air into space."