It still costs a fortune to lift crews and cargo into space. So until we get around to building that space elevator, NASA will just have to use this drone-towed, pilot-less, rocket-launching glider instead.
The American military has become rather effective at using drones to hunt and kill big tangible things but Hellfire missiles and Reapers aren't all that good at tracking little insects. But that hasn't stopped researchers from using smaller drones to help fight malaria.
The spike in drone popularity created a headache for the authorities, who have moved to regulate the infant industry, and make using them safer. The latest proposal: an air-traffic control system based on cellular networks.