Last modified on 13 December 2013, at 16:01

exosphere

See also: exosphère

EnglishEdit

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Wikipedia

EtymologyEdit

exo- +‎ -sphere

NounEdit

exosphere (plural exospheres)

  1. the uppermost layer of a planet's atmosphere
  2. 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)

TranslationsEdit