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A 104 year-old Australian naval mystery may finally have been solved

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One of the last known images of AE1, taken off the coast of Papua New Guinea in 1914
One of the last known images of AE1, taken off the coast of Papua New Guinea in 1914 Source: Australian War Memorial

The wreckage of the Australian submarine AE1, which sank in 1914, has been studied and researchers believe a valve left open caused the submarine to sink and never return to the surface.

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By Myles Morgan

Source: SBS

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The wreckage of the Australian submarine AE1, which sank in 1914, has been studied and researchers believe a valve left open caused the submarine to sink and never return to the surface.

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