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the possibility of traversable wormholes in general relativity was first demonstrated by kip thorne and his graduate student mike morris in a 1988 paper.
the possibility of traversable wormholes in general relativity was first demonstrated by kip thorne and his graduate student mike morris in a 1988 paper.

=== time travel ===the theory of general relativity predicts that if traversable wormholes exist, they could allow time travel.
=== time travel ===the theory of general relativity predicts that if traversable wormholes exist, they could allow time travel.

== traversable wormholes ==lorentzian traversable wormholes would allow travel in both directions from one part of the universe to another part of that same universe very quickly or would allow travel from one universe to another.
== traversable wormholes ==lorentzian traversable wormholes would allow travel from one part of the universe to another part of that same universe very quickly or would allow travel from one universe to another.

later, other types of traversable wormholes were discovered as allowable solutions to the equations of general relativity, including a variety analyzed in a 1989 paper by matt visser, in which a path through the wormhole can be made where the traversing path does not pass through a region of exotic matter.
later, other types of traversable wormholes were discovered as allowable solutions to the equations of general relativity, including a variety analyzed in a 1989 paper by matt visser, in which a path through the wormhole can be made where the traversing path does not pass through a region of exotic matter.

although schwarzschild wormholes are not traversable in both directions, their existence inspired kip thorne to imagine traversable wormholes created by holding the 'throat' of a schwarzschild wormhole open with exotic matter (material that has negative mass/energy).
while schwarzschild wormholes are not traversable, their existence inspired kip thorne to imagine traversable wormholes created by holding the 'throat' of a schwarzschild wormhole open with exotic matter (material that has negative mass/energy).