This is the abstract of a paper by Rhawn Joseph, Ph.D. titled Sex On Mars: Pregnancy, Fetal Development, and Sex In Outer Space which appeared in the October-November 2010 Journal of Cosmology:
Humans are sexual beings and it can be predicted that male and female astronauts will engage in sexual relations during a mission to Mars, leading to conflicts and pregnancies and the first baby born on the Red Planet. Non-human primate and astronaut sexual behavior is reviewed including romantic conflicts involving astronauts who flew aboard the Space Shuttle and in simulated missions to Mars, and men and women team members in the Antarctic. The possibilities of pregnancy and the effects of gravity and radiation on the testes, ovaries, menstruation, and developing fetus, including a child born on Mars, are discussed. What may lead to and how to prevent sexual conflicts, sexual violence, sexual competition, and pregnancy are detailed. Recommendations include the possibility that male and female astronauts on a mission to Mars, should fly in separate space craft.
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