Background This report summarizes the results of an evaluation of a variety of advanced low thrust propulsion options for the…
Background Beam-powered propulsion, also known as directed energy propulsion, is a class of aircraft or spacecraft propulsion that uses energy…
Background The National Near-Earth Object Preparedness Strategy and Action Plan (Strategy and Action Plan) will improve our Nation’s preparedness to…
Background A flight investigation has been conducted on a roll-stabilized ramjet test vehicle. Engine performance data are presented over a…
Background This handbook is issued in accordance with Executive Order (E.O.) 13526, "Classified National Security Information" to provide guidance for…