New research predicts Pluto's atmosphere will ultimately collapse and freeze over.
Astronomers from the University of Tasmania joined an international collaboration for the 28-year study of Pluto's atmosphere and its evolution.
The Tasmanian astronomers used observations from the 1.3 metre Harlingten telescope at the Greenhill Observatory, at Bisdee Tier.
UTAS School of Natural Sciences associate professor Dr Andrew Cole said the university's scientists have been working on Pluto's atmosphere since the 1980s.
"Our ambition has always been to gain a better understanding of the atmosphere's evolution," Dr Cole said.
"Together with national and international colleagues, we were able to construct seasonal models of Pluto and how it responds to change with the amount of sunlight it receives as it orbits the sun."
The study aimed to record the seasonal evolution of Pluto's surface pressure by observing ground-based stellar occultation to gain the atmosphere's profile including density, pressure and temperature.
"What the study found was when Pluto is farthest away from the sun, and during its winter in the Northern Hemisphere, nitrogen freezes out the atmosphere," Dr Cole said.
"The atmospheric pressure has tripled over the past three decades, but, as the planet orbits, our modelling showed that most of the atmosphere would condense out to almost nothing left.
"What our predictions show is that by 2030 the atmosphere is going to frost out and vanish around the whole planet."
Dr Cole said if Pluto does freeze over it may appear brighter in the sky due to sunlight reflecting.
The study's results were also used in comparison with NASA's New Horizons mission which gathered data during a fly-by study of Pluto in 2015.
"The striking red terrain seen in the New Horizons images could fade away if they are snowed under with nitrogen frost," Dr Cole said.
"This research has been crucial in furthering our understanding of Pluto and testing what we know about atmospheres, ices and climate at extreme conditions."