U.S. plans to deploy large satellites in orbit to harness energy from the Sun and beam it down to Earth in the form of microwaves. If all goes well, these could supply entire cities with enormous amounts of power, and at the same time be utilized as space-based weapons systems. A novel based on this concept has already been published about the idea. A solar power satellite could be deployed in orbit by the next five to seven years, according to a recent report by NASA.”]
Source: https://gizmodo.com/china-space-attack-unstoppable-229791