A U.S. satellite caught a secret nuclear explosion in 1979. The world buried the evidence.   FLASHFILE 004 — our hard-hitting, shorter drop before Friday’s flagship investigation.   On September 22, 1979, a U.S. reconnaissance satellite known as Vela 6911 detected a blinding double flash over the South Atlantic Ocean — the unmistakable signature of a nuclear explosion. But instead of alerting the world, governments went silent. No statements. No blame. Just a cover-up that’s lasted for decades.   This is the story of The Vela Incident — the nuclear test that officially never happened.   In this episode, Divergent Files investigates what the CIA, NSA, and White House knew… and why the truth was buried. Was it a joint Israeli–South African nuclear test, a Cold War super-weapon experiment, or something even stranger?   We’ll unpack the declassified reports, the scientific data, and the political denials that turned a verified nuclear event into one of history’s most enduring mysteries....