Pluto's Atmosphere May Finally Be Starting to Collapse

At the edge of the solar system, Pluto is quietly losing its breath. As the dwarf planet continues its long retreat from the Sun — a journey begun when it passed closest to our star back in 1989 — its thin veil of nitrogen, methane, and carbon monoxide is beginning to freeze and fall, just as orbital mechanics always promised it would. New observations now confirm what scientists long anticipated: an atmospheric collapse unfolding on a timescale measured not in years but in centuries, a reminder that the cosmos operates on schedules far older and longer than our own.