Assertion: black hole | /r/HasProperty | name
Facets:
Source sentences:
text: Black hole”, a name which needs no introduction.
text: Around it is a region of space from which light cannot escape, giving the "black hole" its name.
text: A black hole is the name that refers to this region in space where the singularity’s gravitational force is so intense that not even light can get out.
text: Black holes normally can't be seen (thus their moniker), but there are ways they are detectable.
text: A black hole is a name given to a region in the universe with very strong gravitational pull, making it impossible for any matter to leave the site.