Assertion: nebula's gas | /r/HasProperty | heated to millions of degrees
Facets:
value: by these stellar winds
type: OTHER
Source sentences:
text: The Chandra X-ray Observatory detects gas that has been heated to millions of degrees by these stellar winds and also by supernova explosions.
text: Initially the gas is heated to millions of degrees, but then subsequently cools down, emitting the optical light visible in the image.