Black Holes are Separate Universes
In fact, our own universe is very likely itself a vast black hole. We have no knowledge of what lies outside our universe. This is true by definition, but also because of the properties of black holes. Objects that reside in them cannot ordinarily leave them. In a strange sense, our universe may be filled with objects that are not here. They are not separate universes. They do not have the mass of our universe. But in their separateness and their isolation they are autonomous universes.
Notes:
A strange conceptual idea, that implies our own Universe is a Black Hole as well.
Folksonomies: universe cosmos black holes
Taxonomies:
/science/physics (0.563713)
/science/phyiscs/atomic physics (0.559520)
/science/physics/astrophysics (0.479607)
Keywords:
separate universes (0.949646 (negative:-0.244674)), strange conceptual idea (0.843047 (negative:-0.220410)), black holes (0.757746 (negative:-0.220410)), vast black hole (0.704583 (positive:0.461046)), strange sense (0.513576 (negative:-0.324313)), separateness (0.316795 (neutral:0.000000)), objects (0.313685 (negative:-0.561422)), isolation (0.278276 (neutral:0.000000)), definition (0.274334 (positive:0.509088)), fact (0.262111 (neutral:0.000000)), knowledge (0.260367 (positive:0.566875)), properties (0.257283 (neutral:0.000000))
Entities:
Black Holes:FieldTerminology (0.944574 (positive:0.120318)), black hole:FieldTerminology (0.450964 (positive:0.461046))
Concepts:
General relativity (0.947800): dbpedia | freebase | opencyc
Space (0.632992): dbpedia | freebase
Gravitational singularity (0.628424): dbpedia | freebase | yago
Dark matter (0.581156): dbpedia | freebase
Carl Sagan's cosmic connection