Assertion: boomerang nebula | /r/HasProperty | young
Facets:
value: very
type: DEGREE
Source sentences:
text: This simply means that the Boomerang Nebula is very young because, in older planetary nebulae, it is the ultraviolet rays emitted by the central white dwarf stars that make the gasses of the nebulae glow brightly.
text: However, the Boomerang Nebula is so young that it may not have had time to develop these structures.
text: However, the Boomerang Nebula is so young that it may not have had time to develop these structures.