Not directly relevant, but we did come close to meeting Pluto after it lost its atmosphere, due to seasonal variation (which was one of the motivations for laun

Not directly relevant, but we did come close to meeting Pluto after it lost its atmosphere, due to seasonal variation (which was one of the motivations for launching New Horizons when we did). Of course, in that context, we are not talking about atmospheric escape, but condensation, and the atmosphere will come back in a few hundred years when Pluto's orbit takes it close to the sun again.