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has been proposed. The largest spacecraft design analyzed in
Project Orion had a 400 m (1,300 ft) diameter and weighed approximately 8 million tons. It could be large enough to host a city of 100,000 or more people.
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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, on multi-year journeys at subluminal speeds to nearby star systems.
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As long ago as 1964, Robert D. Enzmann of the
Raytheon Corporation proposed an interstellar ark driven by eight nuclear pulse rockets. The living quarters of the starship, habitable by 200 people but with room for growth
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Frederik
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considered nuclear propulsion for spacecraft, suitable for deep space voyages.
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One propulsion method for a crewed spacecraft could be a fusion microexplosion
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Messages from the stars: communication and contact with extraterrestrial life
293:"Organizing and financing interstellar space projects – A bottom-up approach"
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19:"Space ark" redirects here. For the fictional location in the
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Such a ship would have to be large, requiring a large
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60:. Unsourced material may be challenged and removed.
16:Conceptual space vehicle for interstellar travel
176:through the desert of space. The longest-lived
277:Journal of the British Interplanetary Society
188:having a useful lifespan of a mere 50 years.
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238:to study uncrewed interstellar spacecraft.
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211:Specific proposals and research projects
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186:radioisotope thermoelectric generators
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302:(DARPA/NASA, Orlando, Florida:
265:R.W. Moir and W.L. Barr (2005)
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309:14 September 2012 at the
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343:on 31 December 2013.
323:Ridpath, Ian (1978).
234:was conducted by the
329:. Harper & Row.
298:7 April 2020 at the
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396:Interstellar travel
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