Abstract
Current planning for the first interplanetary expedition to Mars envisions a crew of six or seven people and mission duration of around 2.5 years. However, this time frame is much less than that expected on expeditions to the outer solar system, where total mission durations of 10 years or more are likely. Although future technological breakthroughs in propulsion systems and space vehicle construction may speed up transit times, for now we must realistically consider the psychological impact of missions lasting for one or more decades.
Available information largely deals with on-orbit missions. In research that involved Mir and ISS missions lasting up to 7 months, our group and others have studied the effects of psychological and interpersonal issues on crewmembers and on the crew-ground relationship. We also studied the positive effects of being in space. However, human expeditions to the outer planets and beyond will introduce a number of new psychological and interpersonal stressors that have not been experienced before. There will be unprecedented levels of isolation and monotony, real-time communication with the Earth will not be possible, the crew will have to work autonomously, there will be great dependence on computers and other technical resources located on board, and the Earth will become an insignificant dot in space or will even disappear from view entirely.
Strategies for dealing with psychological issues involving missions to the outer solar system and beyond will be considered and discussed, including those related to new technologies being considered for interstellar missions, such as traveling at a significant fraction of the speed of light, putting crewmembers in suspended animation, or creating giant self-contained generation ships of colonists who will not return to Earth.
Adaptation of Nick Kanas, “From Earth’s orbit to the outer planets and beyond: Psychological issues in space,” Acta Astronautica 68 (2011): 576–581, reprinted with permission from Elsevier. Parts of this chapter were presented at the 6th IAA Symposium on Realistic Near-term Advanced Scientific Space Missions, Aosta, Italy, July 6–9, 2009.
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Acknowledgments
This chapter was supported by National Aeronautics and Space Administration Contract nos. NAS9-98093 and NCC-0161. The author would like to thank Ms. Stephanie Saylor; Astronaut Charles Camarda; and Professors Jennifer Boyd, Thomas Neylan, and Richard Wener for their helpful comments on this chapter.
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Kanas, N. (2013). From Earth’s Orbit to the Outer Planets and Beyond: Psychological Issues in Space. In: Vakoch, D. (eds) On Orbit and Beyond. Space Technology Library, vol 29. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30583-2_15
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