Interstellar war

An interstellar war involves a warfare between combatants from different planetary systems. The concept provides a common plot device in science fiction, especially in the space opera subgenre. In contrast, the term intergalactic war refers to war between combatants from different galaxies; interplanetary war refers to war between combatants from different planets of the same solar system.

Likelihood

Michael H. Hart argued that if humans ever spread to other planetary systems, the actual likelihood of interstellar war would be low due to the immense distances (and hence travel times involved)–interstellar war would require a vastly greater investment of time and resources than present-day intraplanetary wars involve.[1] By contrast, Robert Freitas argued that the energy expenditure required for interstellar war would be trivial from the viewpoint of a Type II or Type III civilisation on the Kardashev scale.[2]

Interstellar war in fiction
Main article: Space warfare in fiction

The earliest fictional references appear to deal with interplanetary, not interstellar war (e.g. H. G. Wells' 1898 novel The War of the Worlds). Now that the other planets of the solar system are believed to be devoid of intelligent life, sci-fi writers generally posit some form of faster-than-light drive in order to facilitate interstellar war. Writers such as Larry Niven have developed plausible interplanetary conflict based on human colonization of the asteroid belt and outer planets by means of technologies utilizing the laws of physics as currently understood.

See also

References
  1. Hart, Michael H. (1986). "Interstellar Migration, the Biological Revolution, and the Future of the Galaxy". In Ben R. Finney; Eric M. Jones (eds.). Interstellar Migration and the Human Experience. University of California Press. p. 278. ISBN 978-0-520-05898-9. Retrieved 12 June 2016. ...interstellar wars will be extremely rare, much rarer than warfare has been on Earth. This will be a consequence of the enormous distances between the stars and large travel times between civilizations... a typical civilization might be involved in a major war only once in 50,000 years, perhaps much longer.
  2. Freitas, R. A. Jr. (March 1980). "Interstellar probes – A new approach to SETI". Journal of the British Interplanetary Society. 33: 95–100. Retrieved 2016-06-12.
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