Ground transportation giant Uber has partnered with NASA through a Space Act Agreement to figure out how to safely introduce its concept of transporting urban travelers by air. UberAir plans to use light, VTOL vehicles to quickly whisk passengers from one location to another, bypassing the gridlock of traffic that has become the norm in many large cities. NASA is helping develop traffic management systems for this new concept of air taxi. The agreement was announced at the Web Summit in Lisbon, Portugal.