NASA NTRS · 19820018274
Comments on Pluto's atmosphere
Abstract
A pure CH4 atmosphere would rapidly escape from Pluto. For such an atmosphere, even CH4 frosts on Pluto's surface would completely sublimate on a time scale short compared to Pluto's life. Observations of CH4 therefore imply that its atmosphere must also contain another gas in significant quantity.
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Trafton, L.. 1982-04-01. Comments on Pluto's atmosphere. https://ntrs.nasa.gov/citations/19820018274
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