The ITU Radiocommunication Assembly considering a)that manned space exploration spacecraft and space stations require continuous radiocommunication with earth stations;b)that human space flight may require provisions for emergency radiocommunications for the entire duration of the manned missions; c) that the technical characteristics and operational requirements of emergency space radiocommunication channels may be different from those of routine links between earth stations and manned vehicles in space flight, including for near-Earth, lunar, and planetary missions.