An anonymous reader writes: NASA has issued a warning to private space companies: the agency is moving on from its focus on low-Earth orbit. William Gerstenmaier, chief of human spaceflight, said, "We're going to get out of ISS as quickly as we can. Whether it gets filled in by the private sector or not, NASA's vision is we're trying to move out." This leaves a void for the private companies building rockets to supply the ISS. "NASA says it would like to see the private space industry "take over" low-Earth orbit, although it acknowledges that any successor space station or orbiting module will be far smaller than the $140 billion space station, a collaboration between 15 countries. The message from NASA to the US industry is simple: we're serious about the commercialization of low-Earth orbit, we have this marvelous facility available with unique capabilities, and we want you to use the heck out of it."