DARPA’s XS-1 program aims for an unmanned spaceship with aircraft-like costs

The reusable spacecraft we’ve seen so far haven’t really lived up to their billing: vehicles like the Space Shuttle or SpaceShipTwo require elaborate, expensive launches. If DARPA succeeds with its just-announced XS-1 program, however, spaceflight could be an affordable, everyday occurrence. The agency plans to develop an unmanned spacecraft that requires a minimal ground crew, […]

Continue reading