Sex in space
Human sexual activity in the weightlessness and/or extreme environments of outer space presents a few difficulties for the performance of most sexual activities due to Newton's Third Law. According to the law, if the couple remain attached, their movements will counter each other. Consequently, their actions will not change their velocity unless they are affected by another, unattached, object. Some difficulty could occur due to drifting into other objects. If the couple have a combined velocity relative to other objects, collisions could occur. There have been suggestions that conception and pregnancy in off-Earth environments could be an issue.
The topic of sex in space has been debated to clarify its potential impact on human beings in the isolated, confined, and hazardous space environment. Past discussions often included attempts to determine the veracity of speculations (e.g., about the STS-47 mission, on which married astronauts Mark C. Lee and Jan Davis flew), and even hoaxes, such as Document 12-571-3570.
As of 2009, with NASA planning long-term missions for lunar settlements with goals to explore and colonize space, the topic has taken a respected place in life sciences. Scientist Stephen Hawking publicly concurred in 2007 that possibly human survival itself will depend on successfully contending with the extreme environments of space.
In February 2013, Dennis Tito's Inspiration Mars Foundation announced that they were going to send a two-person crew - a man and a woman - to a 501 days free-return flyby mission to Mars and back. Jane Poynter stressed the importance of the pre-existing stable emotional bond between the members of the couple. She cited her own experience as being a Biosphere 2 crew member together with her husband Taber MacCallum, who is the chief technology officer of Inspiration Mars.
Numerous physiological changes have been noted during spaceflight, many of which may affect sex and procreation, although it remains unclear whether such effects are due to gravity changes, radiation, noise, vibration, isolation, disrupted circadian rhythms, stress, or a combination of these factors.
The primary issue to be considered in off-Earth reproduction is the lack of gravitational acceleration. Life on Earth, and thus the reproductive and ontogenetic processes of all extant species and their ancestors, evolved under the constant influence of the Earth's 1g gravitational field. It is imperative to study how space environment affects critical phases of mammalian reproduction and development as well as events surrounding fertilization, embryogenesis, pregnancy, birth, postnatal maturation, and parental care. Gravity affects all aspects of vertebrate development, including cell structure and function, organ system development, and even behavior. As gravity regulates mammalian gene expression, there are significant implications for successful procreation in an extraterrestrial environment.
Studies conducted on reproduction of mammals in microgravity include experiments with rats. Although the fetus developed properly once exposed to normal gravity, the rats that were raised in microgravity lacked the ability to right themselves. Another study examined mouse embryo fertilization in microgravity. Although both groups resulted in healthy mice once implanted at normal gravity, the authors noted that the fertilization rate was lower for the embryos fertilized in microgravity than for those in normal gravity. Currently no mice or rats have developed while in microgravity throughout the entire developmental cycle.
On July 23, 2006, a Sex in Space panel was held at the Space Frontier Foundation annual conference. Speakers were science journalist-author Laura Woodmansee, who presented her book Sex in Space, Dr. Jim Logan, board certified in Aerospace Medicine and first graduate of the new residency program to be hired by NASA’s Johnson Space Center in Houston, and Vanna Bonta, American poet, novelist, actress who had recently flown in zero gravity and had agreed to an interview for Woodmansee's book. The speakers made presentations that explored the biological, emotional, and physical issues that will confront people moving off Earth into space environment. NBC science journalist Alan Boyle reported on the panel, opening a world discussion of a topic previously considered taboo.
The psychosocial implications of in-flight sex and reproduction are at least as problematic as the related physiological challenges. For the foreseeable future, space crews will be relatively small in number. If pairing off occurs within the crew, it can have ramifications on the crew's working relationships, and therefore, on mission success and crew operations. Behavioral health, close proximity, compatibility and coupling will all be factors determining selection of crews for long term and off-planet missions.
Lyubov Serova, a specialist with the Russian Institute for Biomedical Problems (IBMP) in the field of procreation in the conditions of spaceflight, says "After a period of adaptation for weightlessness, people will not need any special devices, like elastic belts or inflatable tubes to have sex in space," and "We study the impact of weightlessness on the reproductive function of male and female bodies by using mammals as test subjects, particularly rats." The overall conclusion is that sex in space is not a physical problem, and that individuals motivated enough to embark on space flight won't be distracted by sex.
The 2suit (alternately 2-Suit or twosuit) is a garment designed to facilitate effortless intimacy in the weightless environments such as outer space, or on planets with low gravity. The flight garment, invented by American novelist Vanna Bonta, was one of the subjects of a 2008 History Channel television documentary, titled Sex in Space, about the biological and emotional implications of human migration and reproduction beyond Earth. The 2suit sparked international discussions in news and political debates as an iconic metaphor for human colonization of space.
"Sex in Space" was the subject of a History Channel documentary on The Universe television series in 2008. The globally distributed show was dubbed into foreign languages, opening worldwide discussion about what had previously been avoided as a taboo subject. Sex in space became the buzz for the long-term survival of the human species, colonization of other planets, inspired songs, and humanized reasons for space exploration.
Among films that include space sex themes are Moonraker, Moving Violations, Supernova and Cube 2: Hypercube. In the novelization of Alien, Parker tells Brett about an episode of zero-G sex that went wrong.
The issue of sex in space also appears in science fiction by Isaac Asimov who, in 1973, conjectured what sex would be like in the weightless environment of space. He anticipated some of the benefits of engaging in sex in an environment of microgravity.
The difficulties microgravity poses for human intimacy were discussed in an anonymous fictional NASA Document 12-571-3570 in 1989, where the use of an elastic belt and an inflatable tunnel were proposed as solutions to these problems. A mission patch and other documents were determined to be hoaxes.
The adult entertainment production company Private Media Group has filmed a movie called The Uranus Experiment: Part Two where the zero gravity intercourse scene was accomplished by flying an airplane to an altitude of 11,000 feet (3350 meters) and then doing a steep dive. The filming process was particularly difficult from a technical and logistical standpoint. Budget constraints allowed only for one 20 second shot, featuring the actors Sylvia Saint and Nick Lang.
When Apollo 11 astronaut Michael Collins published his autobiography Carrying the Fire in 1974, a contemporary Time Magazine quoted the following passage: "Imagine a spacecraft of the future, with a crew of a thousand ladies, off for Alpha Centauri, with 2,000 breasts bobbing beautifully and quivering delightfully in response to every weightless movement . . . and I am the commander of the craft, and it is Saturday morning and time for inspection, naturally". The magazine followed this up by running a letter from one Sharon Smith, who agreed that the presence of breasts "bobbing weightlessly" would render spacemen unable to do their jobs and added that the space program must safeguard itself by the painful but necessary step of excluding men.
Arthur C. Clarke in turn was quick to point out in a letter to the editor that he had beaten Collins to addressing the matter in the novel Rendezvous with Rama (1973): "Some women, Commander Norton had decided long ago, should not be allowed aboard ship; weightlessness did things to their breasts that were too damn distracting. It was bad enough when they were motionless; but when they started to move, and sympathetic vibrations set in, it was more than any warm-blooded male should be asked to take. He was quite sure that at least one serious space accident had been caused by acute crew distraction, after the transit of a well upholstered lady officer through the control cabin."
A more recent and perhaps more realistic description of the mechanics of low-gravity intercourse is presented in "Sex in Space: The Video," a short story contained in Susie Bright's "The Best American Erotica 2004." The story uses cheating astronauts to describe techniques humans might use to copulate in space without special apparatus.
- Effect of spaceflight on the human body
- Space advocacy
- Space colonization
- Space medicine
- Space tourism
- Mile high club
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- Inspiration Mars