Pluto's hazy atmosphere may be collapsing as it moves farther from the sun

Pluto’s atmosphere may be collapsing as the planet moves farther from the sun. Researchers led by Amanda Sickafoose found that atmospheric pressure fell by 16% between mid-2021 and July 2023. Scientists used starlight to track these changes. "We try to improve those data sets by collaborating with local observers," Sickafoose said.