Interstellar ark
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An interstellar ark is a conceptual starship designed for interstellar travel. Interstellar arks may be the most economically feasible method of traveling such distances. The ark has also been propose
1953 illustration of a "Thousand-Year Space Ark" for Science-Fiction Plus magazine by Alex Schomburg
Enzmann starship
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Enzmann starships are concepts for a crewed interstellar spacecraft by Dr. Robert Enzmann. In the original design proposed in 1964, a three million ton ball of frozen deuterium would fuel nuclear fusi
Interstellar ark
…if the ship is capable of transits requiring hundreds of thousands of years, chemical and gravitational slingshot propulsion may be sufficient. The Enzmann starship proposed in 1964 is a large fusion-powered spacecraft that could function as an interstellar ark, supporting a crew of 200 with extra space for expansion…
Balloon satellite under test. A balloon built in space was to serve as Enzmann's fuel tank.