Assertion: solar system's sun | /r/CapableOf | begin its evolution
Facets:
value: into its red-giant phase
type: OTHER
Source sentences:
text: Astronomers estimate that the current state of the Solar System will not change drastically until the Sun has fused almost all the hydrogen fuel in its core into helium, beginning its evolution from the main sequence of the Hertzsprung–Russell diagram and into its red-giant phase.