Assertion: boomerang nebula | /r/HasProperty | cold
Facets:
value: very
type: DEGREE
Source sentences:
text: As we said, the Boomerang Nebula is very, really very cold.
text: The reason why the Boomerang Nebula is so cold is that the gas ejected from the central white dwarf star is expanding outside at a very rapid speed of 102 miles per second or 164 kilometers per second.