NASA on Wednesday launched the Ares I-X rocket in Kennedy Space Center in Florida. It's the first flight test for the agency's next-generation spacecraft and launch vehicle system. The flight, NASA said, will allow the agency to 'test and prove hardware, models, facilities and ground operations associated with the Ares I launch vehicle.' The Ares I-X is the prototype for the Ares I, a booster vehicle intended to launch mission crews into orbit in the Orion spacecraft, which is still under development. NASA hopes to develop two Ares rockets to return U.S. astronauts to the moon sometime in the 2020s. The program, however, is under review. 