exosphere
See also: exosphère
English
editEtymology
editPronunciation
editNoun
editexosphere (plural exospheres)
- the uppermost layer of a planet's atmosphere
- an extremely thin atmosphere, as on Saturn's moon Dione
- "Scientists weren't even sure Dione would be big enough to hang on to an exosphere" ('Cassini Detects Hint of Fresh Air at Dione', Cassini Solstice Mission, JPL, Mar. 02, 2012)
Translations
editthe uppermost layer of a planet's atmosphere
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