Assertion: black hole | /r/HasProperty | mysterious
Facets:
Source sentences:
text: Black holes are both mysterious and scary.
text: Black holes are mysterious bodies that defy the laws of physics as we know it.
text: Black holes are mysterious objects predicted by Einstein’s theory of relativity.
text: While black holes are mysterious and exotic, they are also a key consequence of how gravity works: When a lot of mass gets compressed into a small enough space, the resulting object rips the very fabric of space and time, becoming what is called a singularity.