MINNEAPOLIS (FOX 9) - Fifty years after the Edmund Fitzgerald sank in Lake Superior, experts and historians are still debating what caused the ship to sink and break apart.

What we know:

The Edmund Fitzgerald sank in Canadian waters during a storm on Nov 10, 1975.

The ship sank, and the 29 crew were lost without issuing a distress signal, which some historians believe indicates the ship went down quickly after being overtaken by a giant wave.

"And they think it's gonna be like every other time they've been pushed in the water when the waves come over the deck, but this time, they didn't come back up," said Larry Elliott.

What they're saying:

Elliott participated in two diving expeditions to study the ship’s wreckage at the bottom of Lake Superior.

In 1994, he saw the door to the p

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