Today marks the 11-month anniversary of the still-unsolved disappearance of Malaysia Airlines Flight 370, which went radio silent on March 8, 2014 somewhere over the South China Sea. What do you think happened to it?

The incident is unlike any other in aviation history. Not a single piece of the aircraft, a Boeing 777, has been recovered. The bodies of the 227 passengers and 12 crew members remain missing. Extensive searches of the ocean’s surface, and now the ocean’s floor, have turned up nothing. The otherwise plausible theory that Flight 370 crashed into the sea requires the presence of wreckage—but there is no wreckage.

So what’s your personal theory? Hijackers? Time-travelers? A black hole? There are many more theories, some more plausible than others. Whatever yours is, tell us below.

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