Space flights cause a failure in the immune system of a person
The results of two studies of NASA, recently published in the journal journal of Interferon & Cytokine Research suggest that spaceflight may cause temporary changes in the immune system of crew members who are long time on Board the International Space Station.
Data obtained at an early stage of one of the experiments showed that the distribution of immune cells in the blood of crew members during the flight remained relatively unchanged. However, they found that some cell functions were significantly reduced, while the activity of another cell type, on the contrary, increased. That is, in a sense, the immune system of crew members, it failed.
If the cell activity is suppressed, the immune system cannot adequately react to threats, which can lead to asymptomatic for the virus. If activity is increased, the immune system becomes too sensitive, which can lead to the development of allergic reactions and persistent rashes, as well as reported some of the crew members.
In another study, scientists analyzed blood plasma, measuring the concentration of cytokines – proteins that regulate the immune system. Continue reading
In technological terms, the human life is becoming more interesting: XXI century people can tolerate a lot of people couldn’t even conceive of at least two centuries ago. Fifty years have passed since the moment when man first flew into space – and now there is such a thing as space tourism. See with your own eyes on top of our planet is no longer something magical and unrealistic – the question is, what is the cost of space flight.
The man tightly on the Ground
Man and humanity as a community of individuals peculiar passion for travel, for change of place of residence. There are different opinions as to what are the roots of this passion. Romantics say about innate human curiosity, a constant desire to learn something new, to look beyond the horizon.
Rationalists believe that the desire for constant movement is an echo of the primitive instinct of survival. Primitive man, being the least protected in terms of wildlife and lack of civilization, was required to constantly move to avoid danger and to find new sources of food. Continue reading
Russia will fly into space on a nuclear engine. Go work on the creation of such a transport and energy module. This was stated by the head of Roscosmos Vladimir Popovkin in a holiday interview to “Rossiyskaya Gazeta”. Today, the country celebrates the Day of cosmonautics. Popovkin said that it is a compact machine with a capacity of one megawatt, the modules will be used in the composition of the inter-orbital tugs and even for interplanetary missions. Mass no analogues in the world.
Yuri Yurievich, what do you think? How realistic is it to create such a setup? How it would function?
Karash: to Create it, of course, real. As far as using it for interplanetary flights – it makes sense. With regard to inter-orbital tug – it is like flying on Boeing-474 from Moscow to Kaluga. I need to use nuclear installation does not see. But if you work its action somewhere within the Earth, then it certainly makes sense. In General, the use of nuclear thrust for interplanetary missions is the most promising.Suffice it to say that the company estimates MSNW (it’s an American company that, together with universitatsstra Washington now developing the nuclear rocket engine), with the use of this type propulsion system flight to Mars and back can be placed in the interval from 30 to 90 days. Continue reading