Summary:
- As Pluto moves further from the Sun in its elongated orbit, its thin atmosphere of nitrogen gas is undergoing a process of sublimation reversal, causing it to freeze and condense back onto the surface as ice.
- Researchers utilizing stellar occultation data have observed this atmospheric collapse, noting that while the atmosphere is currently thinning, it is expected to stabilize or potentially recover as the dwarf planet eventually begins its long return journey toward perihelion.