Pluto's Atmosphere Is Collapsing as It Drifts Away From the Sun, Observations Show

Summary

Pluto's atmosphere is beginning to freeze out and collapse as the dwarf planet moves further away from the sun, according to observations made by astronomers using stellar occultations. A team led by Amanda Sickafoose has detected a decrease in atmospheric pressure, indicating the onset of this process as Pluto approaches its aphelion in 2114.