Assertion: black hole | /r/HasProperty | dead star
Facets:
value: basically
type: DEGREE
value: according to physisists
type: OTHER
Source sentences:
text: According to physisists, Black holes are basically a dead star which produces billion times more gravitational force than it would have ever had during its life cycle as a star.
text: This year, astronomers proved Rush right by establishing that Cygnus X-1 does indeed harbor a black hole, a dead star whose great gravity lets nothing, not even light, escape.