One year on from the disappearance of Malaysia Airlines Flight MH370, an extraordinary amount of key data remains unknown— fuelling conspiracy theories and heated online debate about one of aviation’s biggest mysteries.

A US navy “black box” detector made its debut in the hunt for flight MH370 but Australia’s search chief warned it was crunch time as the box’s signal is set to expire soon.

The Malaysian military claims it has radar evidence showing that the missing Boeing 777 plane changed course and made it to the Malacca Strait.