Assertion: black hole | /r/HasProperty | powerful
Facets:
Source sentences:
text: A black hole’s gravity is so powerful that, once an object is close enough, there is no possible way of escaping its pull.
text: Black holes, for example, are these powerful masses that pull things in space into them –
text: Black holes are so powerful that they even suck up light.
text: But he was the first to realise that a certain type of radio emission would be generated close to and all around the black hole, which would be powerful enough to be detected by telescopes on Earth.