Assertion: comet's atmosphere | /r/HasProperty | thin
Facets:
value: very
type: DEGREE
Source sentences:
text: The Martian atmosphere is very thin and composed mainly of carbon dioxide, with some nitrogen and argon.
text: The atmosphere of Enceladus is also extremely thin and variable, consisting mainly of water vapor, nitrogen, methane, and carbon dioxide vented from the moon's interior through cryovolcanism.