In 1979, an American Vela nuclear-detection satellite recorded a mysterious double flash over the remote southern ocean — the kind of signal it was built to recognize as an atmospheric nuclear test. But no country admitted responsibility.

No public blast site was confirmed. And the official explanation may have been stranger than the conspiracy. Was it a secret Cold War nuclear test involving Israel, South Africa, or both? Or did an aging satellite mistake a rare accident in space for one of the most dangerous events on Earth?

This episode of Unexplained History investigates the Vela Incident, the classified debate that followed, Jimmy Carter’s private diary entry, the search for fallout, and the Cold War mystery that still refuses to close.

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🎧 Unexplained History explores the myths, mysteries, and misunderstood moments that shaped our world. Hosted by Tom Mackenzie and Don Masterson. New episodes every week.
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History, Mystery, True Crime, Conspiracy, Paranormal, CIA, Cold War, Ancient Aliens, Archaeology, Unsolved, Supernatural, Tom McKenzie, Audio Drama, Storytelling, Documentaries.

This episode includes AI-generated content.