Each day that passes without a clear idea of what happened to missing Malaysia Flight 370 new theories and possibilities are proposed about the possible fate of the jet.

Among the most recent theories proffered are a fire that disabled the plane, that it hid by flying in the "shadow" of another plane, or that everyone on board was overcome when the plane's cabin became depressurized.

Here are five of the most repeated theories of what happened to flight MH370. Read