During the 1950s and 60s, the United States suffered a string of mishaps with nuclear weapons.

But a couple of them were close shaves.

The Goldsboro incident is one of them.

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Only five managed to successfully parachute out.

Three crew members died in the crash.

Photo:Kelly Michals/Flickr

On board the B-52 bomber were two 3.8 megaton Mark 39 thermonuclear weapons.

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As the pilot-less airplane fell, it broke-up midair and the two hydrogen bombs separated from their bays.

But later sources revealed that explosion was a real concern.

These thermonuclear devices were 250 times more powerful than the one that destroyed Hiroshima.

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Thousands of people would have died instantly.

Millions more would have been affected by nuclear fallout.

But some authors dispute this claim.

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Under these circumstances, the possibility of a detonation wasnext to none.

The lost piece contained asignificant amountof high-enriched uranium.

But we also have to give a lot of credit to just plain old dumb luck.

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