Question

do worm holes have mass?​

Answer 1

Answer:

Wormholes have a strong tendency to pinch off and disappear. It is well established that a sizable quantity of negative mass-energy is needed to overcome this tendency. That requirement has been perceived as a "show-stopper" because our universe does not seem to contain "exotic matter" objects with negative masses

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Answer 2

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Wormhole engineering

"You would need some very exotic type of matter in order to stabilize a wormhole," said Hsu, "and it's not clear whether such matter exists in the universe." Such matter would need to have negative energy that expands in space instead of contracting, as mass with its inherent gravity is wont to d