See also: Degasification

In Astrophysical, the degasification is a phenomenon occurring on the level of the external parts of a Comet, when it is relatively close to the Sun. This degasification led to the formation of the tail of comet.

Degasification is also one of the theory explaining the presence of atmosphere on the telluric planets, in spite of the fort Solar wind present during the formation of these planets. Degasification is a release of Gaz coming from ices formerly located inside planet and released by volcanicity, creating an atmosphere if the planet has a sufficient moisure-holding capacity so that the gases do not escape.