Commercial air travel is struggling to take off as the industry tries to navigate through an unprecedented pandemic. More than 830,000 travelers passed through TSA checkpoints on Aug. 9.

Prior to the 1970s, the primary form of jet engine was the turbojet engine, which was used by large aircraft as far back as the late 1930s. Commercial aircraft would have several of these engines ...

The only supersonic commercial jet that ever flew, the Concorde cruised at twice the speed of sound. A one-way ticket cost $6,000 in 2003. ...

Commercial aircraft use larger engines mounted beneath the wings, but private jets still use rear mounted engines. Here's why bigger aircraft don't anymore.