Space-drones, innit. NASA replaced by USAF-Boeing partnership.
"An unmanned US plane on a top-secret, two-year mission to space has returned to Earth and landed in California. The aircraft, resembling a miniature space shuttle and known as the Orbital Test Vehicle or X-37B, spent 674 days in orbit around the planet. It was the unmanned plane's third space flight, but its mission has been shrouded in mystery. A theory that it was taking a look at China's space lab has been downplayed by experts."