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Mesopause vs Exosphere - What's the difference?

mesopause | exosphere |

As nouns the difference between mesopause and exosphere

is that mesopause is mesopause while exosphere is exosphere (layer of the earth's atmosphere).

mesopause

English

Noun

(en noun)
  • In the atmosphere, the boundary between the mesosphere and the ionosphere. It is the atmospheric boundary where the temperature reaches its minimum value.

    • exosphere

    English

    (wikipedia exosphere)

    Noun

    (en noun)
  • 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)