Assertion: massive star | /r/CapableOf | collapse with sufficient energy
Facets:
value: to force all of its electrons
type: PURPOSE
Source sentences:
text: A celestial body having a mass of 1.4 to 2.1 solar masses contained within a radius of only about 10 kilometers (6 miles), formed when a massive star collapses with sufficient energy to force all of its electrons into the nuclei that they orbit, where they react with protons, leaving only neutrons.