Assertion: black hole's pull | /r/HasProperty | equal
Facets:
value: to the speed of light
type: OTHER
Source sentences:
text: It's the invisible boundary where the pull of the gravitational field is equal to the speed of light.
text: The gravitational pull from the core of the star is equal to the gravitational pull of the gases forming a type of orbit, however when this equality is broken the star can go into several different stages.