Assertion: nebula's temperature | /r/CapableOf | become high
Facets:
value: at this point
type: TEMPORAL
Source sentences:
text: As gravity collapses the protostar temperatures and pressure in its core become high enough to trigger nuclear fusion.
text: At this point the density and temperature will become so high that the fusion of helium into carbon will begin, leading to a helium flash; the Sun will shrink from around 250 to 11 times its present (main-sequence) radius.