Assertion: moon's atmosphere | /r/HasProperty | molecular oxygen
Facets:
value: mostly
type: DEGREE
value: probably
type: DEGREE
Source sentences:
text: Observations with the Goddard High Resolution Spectrograph of the Hubble Space Telescope, first described in 1995, revealed that Europa has a thin atmosphere composed mostly of molecular oxygen (O 2 ), and some water vapor.
text: Observations with the Goddard High Resolution Spectrograph of the Hubble Space Telescope, first described in 1995, revealed that Europa has a thin atmosphere composed mostly of molecular oxygen (O 2 ), and some water vapor.
text: Callisto is surrounded by an extremely thin atmosphere composed of carbon dioxide and probably molecular oxygen.