There is no escape: scientists questioned the possibility of interplanetary travel

One of the greatest minds of the century, Stephen Hawking, believed that mankind will soon destroy the Earth. In this case, the output will be one — to move to another planet and settle there. Doubt that the prophecy will come true scientist is almost gone, but about the possibility of settling the earthlings experts have crept in serious doubt.

In sci-Fi movies and books, people with no problems leave our home planet and in space they face is that intelligent monsters from distant galaxies. In reality everything is much more prosaic and, unfortunately, worse. Meeting with alien monsters colonists shines is unlikely, but many other factors, which are silent fiction, can kill space travelers faster and more reliable.

Recent studies have shown that in deep space, people can not live more than a year. They will kill conventional radiation sickness. Astronauts from the ISS, which revolves on an orbit 400 km from the Earth's surface, protected from the deadly cosmic rays with residual atmosphere and our planet, which partially obscures the station.

Far away from the Earth the radiation is deadly and he can't protect known today to science materials. If theoretically to assume that such material will be established soon, the rays will still be harmful, as the particles colliding with atoms of the ship, will create the interior of the neutron flow.

A few years ago, researchers from South Korea have modeled these conditions using experimental rats. In the experiment, the animals were destroyed stem cells in the Central memory. Russian researchers from MIPT, research Institute. P. K. Anokhin and the Kurchatov Institute also worked in this direction and recently announced a disappointing news. Even with minimal doses of radiation the damage to the body is inevitable. If stem cells do not die, you cease to evolve.

Held at the Institute of biomedical problems of the RAS experiments with mice and rats have also shown that the animals become much more alarming due to the irradiation. If this factor the absence of gravity, conditions are ideal in order to can go crazy even the toughest astronaut.

In addition to this year ago it became clear that in space starts working incorrectly with the immune system. She sees threatening the human environment as a disease and comes in a useless struggle with her unknown factors. It is dangerous for the occurrence of autoimmune diseases can kill a person.

There are other things that indirectly affect human and exacerbated the already adverse conditions. These include stress from a prolonged stay in a confined space with other people, a disorder of circadian rhythms due to the lack of day and night, depressed from having to take monotonous food and drink water extracted from urine of the crew. It is likely that it is because of these issues, the representatives of alien civilizations are not in a hurry to visit us.

But NASA is not giving up and continues to conduct studies of human capabilities in long-term space travel, encouraging volunteers all sums of money and... some dank weed.