At 17:45Z or 03:45 AEST (L) 23/04/2014, I was looking for the whereabouts of QF21 on FlightRadar24. It should have been enroute to Narita in Japan but I did not locate it. I did however find this strange, unidentified aircraft flying on a bearing of 158 degrees at FL450 NNE of Papua-New Guinea.
See for yourself!
At an altitude of 45,000ft, this aircraft travelling in stealth mode, is flying higher than most commercial aircraft would fly. No point of origin (although tracking commenced in the vicinity of Guam) or destination was specified and at 03:45 at night.
Its identity remains a mystery! Then just as quickly it disappeared from the screen! Curious.