French investigators confirm wing part is from Flight 370

The flight's disappearance on March 8, 2014, has been one of aviation's most confounding mysteries.

[...] the wing flap washed ashore July 30 on the French island of Reunion, investigators had not found a single physical clue linked to the missing plane, despite a massive air and sea search.

Officials who scrutinized data exchanged between the plane's engine and a satellite determined that the jetliner took a straight path across the ocean, leading them to believe that the plane flew on autopilot for hours before running out of fuel and crashing into the water.