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Space Force’s X-37B spaceplane returns to Earth after over two years in space

• Trouble_007 4y ago
  >the Naval Research Laboratory’s photovoltaic radiofrequency antenna module as well, which is designed to convert solar rays into microwave energy and “transmit power to the ground.” Or to an Unmanned Aerial Vehicle (UAV)[0] shadowing the satellite in the upper-atmosphere? [0] An Unmanned Aerial Vehicle (UAV) : https://en.m.wikipedia.org/wiki/Unmanned_aerial_vehicle https://en.m.wikipedia.org/wiki/Unmanned_aerial_vehicle P.S. the Naval Research Laboratory are a very inventive group!