Question

1. Could the black hole in the center of the galaxy be a white hole ?

2. Can A Wormhole Have More Than One Entrance And Exit ?​

Answer 1

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1) White holes appear in the theory of eternal black holes. ... Supermassive black holes (SBHs) are theoretically predicted to be at the center of every galaxy and that possibly, a galaxy cannot form without one. Stephen Hawking and others have proposed that these SBHs spawn a supermassive white hole/Big Bang.

2) Considering that wormholes are predicted by a variety of methods, the question arises about what travelers might expect. ... Second example is when vehicles are close enough together that they generate a single wormhole entrance. but diverging in their paths sufficiently that they cannot share a single exit.

Answer 2

Could the black hole in the center of the galaxy be a white hole ?

2. Can A Wormhole Have More Than One Entrance And Exit ?