While boarding a plane, you may have noticed the cockpit door is often kept open—and there's actually a pretty straightforward reason. If you’ve ever looked toward the front of the plane while ...

Cockpit barriers are required to stay sealed during flight, but oftentimes passengers can get a glimpse inside while boarding CHARLY TRIBALLEAU/AFP via Getty Passengers can often catch a glimpse ...

Airplane windows might seem ordinary, but they are as much of an engineering marvel as the rest of a modern aircraft. These windows are made of three layers of material to facilitate the plane's ...

Most travelers probably didn't give much thought to the security of airliner cockpits before the 9/11 attacks, and since then it might seem odd to some that cockpit doors are often left wide open ...