Assertion: dark matter's pull | /r/HasProperty | strong
Facets:
Source sentences:
text: To keep these objects tightly bound together, the gravitational pull felt by an object must be strong enough to balance the energy it has due to its motion.
text: The pull created by a black hole is so strong that if you get too close to one – even if you are travelling away from it at the fastest speed it is possible to go – you will never be able escape.