Background When the United States began considering a piloted voyage to the moon, an enormous number of unknowns about strategies,…
Background Between Sputnik's launching in October 1957 and the lunar landing in July 1969 America sponsored five human spaceflight projects.…
Background The Center for the Advancement of Science in Space (CASIS), a non-profit organization, is the manager of the International…
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…