Pakistani police stand guard as a Pakistan International Airline plane taxis on a runway in Islamabad on Feb. 8. The national carrier has struggled in recent years with a $3 billion debt. Farooq Naeem/AFP/Getty Images hide caption

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Once Pakistan's Pride, Its Embattled National Airline Fights To Survive

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United Airlines planes sit on the tarmac at San Francisco International Airport on July 8, grounded by a computer glitch. Some 3,500 United passengers around the world were delayed. Justin Sullivan/Getty Images hide caption

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United Airlines Faces Steep Ascent In Not-So-Friendly Skies

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The Solar Impulse 2 landed in Hawaii in early July. The team behind the sun-powered airplane says it will be grounded until next spring. Solar Impulse | Revillard | Rezo/Solar Impulse | Revillard | Rezo hide caption

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The tiny town of Sundsvall, Sweden, is home to the world's first airport to land passenger planes by remote control. The cameras used to help the air traffic controllers guide airplanes render details as small as cars pulling into the parking lot from miles away. Rich Preston/NPR hide caption

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In Sweden, Remote-Control Airport Is A Reality

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NORAD identified the plane that crashed off the coast of Jamaica, after flying for several hours with an unresponsive pilot at the helm, as a Socata TBM-700, similar to this one. Wikimedia Commons hide caption

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Malaysia Airlines had been struggling even before two of its flights were lost this year. Analysts say the national carrier faces either bankruptcy or privatization. Mohd Rasfan/AFP/Getty Images hide caption

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After Two Disasters, Can Malaysia Airlines Still Attract Passengers?

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The Solar Impulse, a solar-powered plane, flies over Switzerland. The makers will be journeying across the U.S. this spring, hoping the flight helps challenge assumptions about what solar technology can do. Courtesy of Solar Impulse hide caption

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Solar-Powered Plane Uses Its Lightness To Fly In The Dark

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The interior of a United Airlines Boeing 787 Dreamliner. Kevork Djansezian/Getty Images hide caption

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The current radar-based air traffic control system (shown here) will eventually be replaced with a new system called NextGen, which will rely on GPS. A number of computer security experts are concerned that NextGen is insecure and vulnerable to hackers. John Moore/Getty Images hide caption

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Could The New Air Traffic Control System Be Hacked?

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The Air Force's U-2 spy plane first took flight in August 1955 and has been in commission ever since. USAF/Getty Images hide caption

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Vintage Spy Plane Gives High-Tech Drone A Run For Its Money

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Evelyn "Mama Bird" Johnson poses by at the airport she managed in Morristown, Tenn., in this 2005 file photo. Johnson, who began flying in 1944, died Thursday. Wade Payne/AP hide caption

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'Mama Bird' Evelyn Johnson Dies At 102; Logged 7 Years Of Flight Time

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