From Surf Wiki (app.surf) — the open knowledge base
Interstellar ark
Conceptual space vehicle for interstellar travel
Conceptual space vehicle for interstellar travel
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 proposed as a potential habitat to preserve civilization and knowledge in the event of a global catastrophe.
Such a ship would have to be large, requiring a large power plant. The Project Orion concept of propulsion by nuclear pulses has been proposed. The largest spacecraft design analyzed in Project Orion had a 400 m diameter and weighed approximately 8 million tons. It could be large enough to host a city of 100,000 or more people.
Thrust concepts
Another concern is selection of power sources and mechanisms which would remain viable for the long time spans involved in interstellar travel through the desert of space. The longest-lived space probes are the Voyager program probes, which use radioisotope thermoelectric generators having a useful lifespan of a mere 50 years.
One propulsion method for a crewed spacecraft could be a fusion microexplosion nuclear pulse propulsion system (like that proposed in Project Daedalus) that may allow it to obtain an interstellar cruising velocity of up to 10% of the speed of light. However, if the ship is capable of transits requiring hundreds of thousands of years, chemical and gravitational slingshot propulsion may be sufficient.
Specific proposals and research projects
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, on multi-year journeys at subluminal speeds to nearby star systems.
In 1955 Project Orion considered nuclear propulsion for spacecraft, suitable for deep space voyages.
In 1973–1978 Project Daedalus was conducted by the British Interplanetary Society to study uncrewed interstellar spacecraft.
References
References
- R.W. Moir and W.L. Barr (2005) [http://ralphmoir.com/media/jBIS.pdf "Analysis of Interstellar Spacecraft Cycling between the Sun and the Near Stars"] {{Webarchive. link. (2 November 2013 ''Journal of the British Interplanetary Society'' '''58,''' pp. 332–341)
- Frederik Ceyssens, Maarten Driesen, Kristof Wouters, Pieter-Jan Ceyssens, Lianggong Wen (2011) [https://arxiv.org/ftp/arxiv/papers/1109/1109.5318.pdf "Organizing and financing interstellar space projects – A bottom-up approach"] {{Webarchive. link. (7 April 2020 (DARPA/NASA, Orlando, Florida: [http://100yss.org/ 100 Year Starship conference] {{Webarchive). link. (14 September 2012 ))
- Ridpath, Ian. (1978). "Messages from the stars: communication and contact with extraterrestrial life". Harper & Row.
This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.
Ask Mako anything about Interstellar ark — get instant answers, deeper analysis, and related topics.
Research with MakoFree with your Surf account
Create a free account to save articles, ask Mako questions, and organize your research.
Sign up freeThis content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.
Report