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the claim

White holes are a mathematically valid solution of the equations of general relativity, but there is no observational evidence that they exist.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 sources for · 0 against

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Is it true that white holes are a mathematically valid solution of the equations of general relativity, but there is no observational evidence that they exist?

Yes. A Wikipedia reference states that white holes are a hypothetical region of spacetime appearing in solutions of the Einstein field equations, and that there are no observed physical processes through which a white hole could be formed. A separate paper notes that the time-reversal invariance of the Einstein field equations admits a complementary boundary condition, though its text is truncated before naming white holes.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

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Evidence for · 2
White hole - Wikipedia
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White hole - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/White_hole

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More for · 1
Black Holes as Boundary Conditions: On the Mathematical Admissibility of Complementary Spacetime Continuations
2025
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Lisa, D. (2025). Black Holes as Boundary Conditions: On the Mathematical Admissibility of Complementary Spacetime Continuations. zenodo.org. https://doi.org/10.5281/zenodo.18087453

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