After meeting with the world's keenest aviation minds, Tara Brown reflects on the world's greatest aviation mystery.
Four and a half years on, a mystery of this magnitude has spawned evermore incredulous conspiracy theories and inflamed a blame game where investigators and authorities have been accused equally of ineptitude and cover up.
For years, their families have waited graciously and desperately for answers.
60 Minutes invited world renowned experts - air crash investigators, senior pilots, oceanographers and the former head of the Australian Transport Safety Bureau, the ATSB- to review what is known of the last moments of the MH370 flight to conclude what most likely happened to the plane and why.
Our aim was to hear their professional assessment and to understand why the initial search was done where it was, a search that has failed to find the missing plane.
On a number of occasions, Simon Hardy has sought permission from air traffic control to change course slightly to get a better look at Uluru. He dips the wing so his passengers can get to see the big red rock. It's this habit which led him to his Penang explanation. A Eureka moment in this confounding disappearance.
The most enduring difference of opinion between our hard headed panel was what happened at the end of flight: was Captain Zaharie still controlling the plane to land it somewhere in the ocean, or after setting his course south did he then suicide by depressurising the cockpit, or did he somehow lose control to finally let it crash into the sea?
"Where?" remains the most pressing question.
Where is the plane? And when will they get to say their final goodbyes to their loved ones who they so happily and casually farewelled in 2014?
To watch the full story, MH370: The Situation Room see below.