At an airfield somewhere in the UK, there’s a drone with the wingspan of a Boeing 737. And it belongs to Facebook.This enormous unmanned aerial vehicle is called Aquila—a nod to the eagle who carried Zeus’s thunder bolts in Greek mythology—and it’s part of Facebook’s rather ambitious effort to deliver Internet access to the more than 4 billion people on earth who don’t already have it. The idea is that Aquila will circle in the stratosphere, above the weather, wirelessly beaming Internet signals to base stations in underdeveloped areas of countries like Nigeria and India.Earlier this year, the company tested smaller models of this aircraft, and now, according to Facebook’s Yael Maguire, who oversees the project, the company is ready to test the full-size Aquila prototype. “The aircraft is real,” he tells WIRED, before a briefing with other reporters at Facebook headquarters in Menlo Park, California. Read more.