The Interdimensional UFO Hypothesis: History, Key Thinkers, and Cultural Echoes

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Interdimensional UFO theory says sightings come from experiences of other dimensions or portals that share space with ours, a view advanced by Meade Layne, John Keel, J. Allen Hynek, Jacques Vallée, and Jeffrey J. Kripal, linking contemporary reports to older ideas of hidden realms like jinn and angels and to 19th‑century Theosophy, and it has influenced popular culture such as Indiana Jones and the Kingdom of the Crystal Skull and Interstellar while leaving room for uncertainty.

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Interdimensional UFO hypothesis - Wikipedia

An interdimensional UFO hypothesis posits that contemporary flying-saucer sightings arise from experiences of other dimensions or portals coexisting with our space, a view championed by Meade Layne, John Keel, J. Allen Hynek, Jacques Vallée, and Jeffrey J. Kripal, framing the phenomenon as a modern echo of enduring mythic and spiritual patterns—from Islamic al-ghayb and the world of alam al-mithal to 19th‑century Theosophical cosmologies—with Layne’s ether ships, Keel’s ultraterrestrials, and Vallée’s critique of a straightforward ET origin, a discourse that permeates popular culture (e.g., Indiana Jones and the Kingdom of the Crystal Skull, Interstellar) while acknowledging ongoing uncertainties.