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Long-term manned space missions is now impossible

The answer to the question of how in the coming years will be Russia’s contribution into the process of full exploration by the inhabitants of the Earth, not yet clear

Before the first manned flights into space, many physicians feared that in weightlessness the astronaut may be a different disease: ulcers and kidney stones, sudden weight loss, softening of bones, decreased muscle tone, the development of sea-sickness, disturbance of the orientation and other misfortunes. But in reality it turned out that astronauts in General are more or less able to adapt to microgravity and not to experience any serious discomfort, especially in flight conditions, the duration of which does not exceed 6-10 months. In order to reduce harmful effects to a minimum, the astronauts, while in orbit, exercise, diet, etc.

But how will affect the human body long-term space flight, lasting several years, physiologists have collected insufficient data.

In light of the active conversations and different messages about the future of manned human flight to Mars, which include the experiment “Mars-500” and recent statements by President Barack Obama . this information is very necessary. Continue reading

Short-term space flights of man

Manned flights on the orbital stations

In the first decade of the era of manned spaceflight duration increased from 108 min to 18 days. Made in this period, medical and biological research (in the Russian ships “Vostok”, “Voskhod”, “Union”; in the U.S. project “mercury”, “Gemini”, “Apollo”) have proved the possibility of relatively short-term (up to 2-3 weeks) stay safe man in the space flight environment and active activities outside of the ship.

The most significant changes in the major systems of the human body were observed after flights. They were shown to decrease the body’s resistance to physical and orthostatic stress; impaired coordination of movements and regulation of the vertical posture; a reduction of body weight, hydration of the body, decreasing the volume of blood plasma and erythrocyte mass; asthenia. These changes in General increased with increasing duration of space flights and after flights, lasting 14 to 18 days, were practically significant.

Post-flight revealed improvements of indicated that to further increase the duration of flights you need to apply a system of appropriate protective and preventive measures that will facilitate adaptation of the human body to terrestrial conditions after the completion of the flight. Continue reading

Scientists warn that sex in space is dangerous for health

Future space tourists are already thinking about what it would be like to have sex in zero gravity. However, scientists hasten to cool the ardor of the lovers: sex in space could harm the health.

Future space tourists are already thinking about what it would be like to have sex in a vacuum. However, scientists hasten to cool the ardor of lovers.

According to biologists, to conceive a child in extraterrestrial environments will most likely not succeed. Space hostile to earthly love, the scientists shrug. Moreover, they say that sex in space could cause irreparable harm to human health. These words are confirmed experimentally. However, I was involved in a potentially dangerous study not people, and plants.

Their cells are damaged when the gravity changes, proved the researchers. In particular, when too high or too low gravity to the negative impact of exposed pollen tube is the vegetative cell of the male zarostka in flowering plants. Gravitational changes are not the best way affect its development and functioning.

In addition, the space environment is threatened intracellular circulation of the plant. Continue reading

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