The mystery surrounding MH370 has been a focus of continued investigation and a source of sometimes feverish public speculation. The loss devastated families on four continents. The idea that a sophisticated machine, with its modern instruments and redundant communications, could simply vanish seems beyond the realm of possibility. It is hard to permanently delete an email, and living off the grid is nearly unachievable even when the attempt is deliberate. A Boeing 777 is meant to be electronically accessible at all times. The disappearance of the airplane has provoked a host of theories. Many are preposterous. All are given life by the fact that, in this age, commercial airplanes don’t just vanish.

The Crash of EgyptAir 990