CELESTIAL FRONTIERS Open PDF Document Details Document Type Technical Report Publication Date Mar 23, 1960 Accession Number AD0616567 Entities People George H. Clement Organizations RAND Corporation Tags Communities of Interest Space DTIC Thesaurus Topics Aeronautics Artificial Satellites Astronautics Ballistic Missiles Booster Rocket Engines Celestial Mechanics Engineering Engineers Geodetic Surveys Payload Rockets Space Probes Space Sciences Space Systems Spacecraft Surveys United States