CITY IN THE SKY
Air date: Wed., Feb. 22, 10:00 pm
Explore a unique metropolis – a midair “city” composed of nearly a million people on flights that crisscross the world daily. Meet the hidden army working to keep the city aloft and uncover the exceptional engineering and technology that make it work.
What goes up must come down, and getting passengers safely back to earth depends on complex global networks and some astonishing technology. Around the world, 100,000 flights a day make touchdown, almost every one safely. Learn what’s involved.
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