Assertion: black hole | /r/MadeOf | much
Facets:
value: as the entire earth
type: OTHER
Source sentences:
text: Don’t stop there: A black hole with a thimble-sized event horizon contains as much mass as the entire Earth.
text: That is, they are regions containing so much mass squeezed into so little space – regions of such powerful gravity – that no information or light or anything can escape, even if moving at the fastest speed known to exist in our universe, the speed of light.