Life in space is really difficult because man was not created to live and thrive in that environment. If we have to be in a long journey in space, whether we can still develop as a living creature?<\/p>\n\n\n\n
Need something very special to be an astronaut -combined remarkable among the courage, fitness, intelligence, quick decision making, and peace of mind when under pressure.<\/p>\n\n\n\n
When the United States Space Agency (NASA) selects the first astronaut them at the end of the 1950s, the range of their choice fell on a row of soldiers and the best pilot.<\/p>\n\n\n\n
The Soviet union at that time do similar things, although they also include the condition that the cosmonauts must be at least plays the body 170 centimeters to fit in the capsule Vostok and parachute.<\/p>\n\n\n\n
The goal, cosmonauts selected it can be out of the plane outside angksa when he re-entered the earth’s atmosphere. Unlike the U.S., the Soviet Union also recruited women.<\/p>\n\n\n\n
Since that time the astronauts come from a variety of professions, such as scientists, engineers, and doctors. Even so, for approximately the last 60 years, the criteria of choice for ‘the best choice’ remains.<\/p>\n\n\n\n
The decision of the Space Agency of the European (ESA) in 2009, is one such example. Of the three astronauts who they choose, three of whom are airmen fighter aircraft and a commercial pilot. Two astronauts and the other has a hobby of skydiving and mountain climbing.<\/p>\n\n\n\n
Although the candidates the best are chosen to become astronauts, human beings are actually not suitable to live outside angksa.<\/p>\n\n\n\n
We are the product of evolution over the last 3.8 billion years living in the biosphere is rich in oxygen and is protected from the rigors of objects outside angksa by the magnetic bubble.<\/p>\n\n\n\n
While away from earth, the astronauts bombarded with cosmic radiation and suffer from nausea incredible, loss of strength of the joints, vision deteriorates, even the weakening of the immune system because of the absence of gravity.<\/p>\n\n\n\n
ESA astronaut Luca Parmitano, saying how he felt amazed at the quick change of his body for five and a half months within the International Space Station in the path of the orbit of the earth.<\/p>\n\n\n\n
“Adaptation feels like a transformation. You see your legs more slender and your face be round. Slowly your body gets used to the condition of ‘normal’,” he said.<\/p>\n\n\n\n
Parmitano also observed a change in the way her body moves. “At first you tend to move horizontally because you worry nudge the objects around you,” he said.<\/p>\n\n\n\n
“You should be familiar with the parts of your body that moves in a different way. After about six weeks, your back starts to move vertically. You should be familiar because you’re in outer space,” he added.<\/p>\n\n\n\n
But adaptation is even going too far. “I feel my legs are not useful. I’m not going to cut it and why I do not use it as a hand?<\/p>\n\n\n\n
“Have two pairs of hands in outer space would be so useful, one pair on the hand grip and the other one to work,” said Parmitano.<\/p>\n\n\n\n
“Stabilize the buttocks is very interesting because the three-point balance is better than two points,” he added.<\/p>\n\n\n\n
The longer astronauts spend time in outer space, including the plan to land on the moon and Mars, a number of parties began to consider making a space shuttle which provide habitat where astronauts can stay healthy and fit.<\/p>\n\n\n\n
The record for the longest stay in space so far is still held by cosmonaut Valeri Polyakov, namely 437 of the day.<\/p>\n\n\n\n
Spacecraft imagine it is predicted to be able to protect the astronauts from radiation, has a system of supporting human life, and most likely made to keep spinning to reproduce the effects of gravity.<\/p>\n\n\n\n
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