Assertion: astronomer's observation | /r/HasProperty | performed
Facets:
value: from the upper atmosphere
type: LOCATION
value: from space
type: LOCATION
Source sentences:
text: Light at those wavelengths is absorbed by the Earth's atmosphere, requiring observations at these wavelengths to be performed from the upper atmosphere or from space.
text: Most of the light at these wavelengths is absorbed by the Earth's atmosphere, so observations at these wavelengths must be performed from the upper atmosphere or from space.