Assertion: carina's star | /r/CapableOf | end their lives
Facets:
value: by producing a planetary nebula
type: MANNER
Source sentences:
text: Stars with masses lower than 8 M ☉ are thought to be too small to produce supernova explosions, and end their lives by producing a planetary nebula instead, while a star heavier than 12 M ☉ would have produced a nebula with a different chemical composition from that observed in the Crab Nebula.