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Mission to Mars

A person is attracted to space. He wants to figure out where it came from, if not from monkeys, and is there intelligent life on other worlds. And don’t always need to look prohibitively far away, if you planet “on all occasions”. Mars became the object of attention long before the exploration of space, and it is popular with filmmakers who want to make fiction.

But it was a fantastic part of the question this film will have problems. The Director was not able to find and catch the right rhythm and the right mood. The trouble is in the details. It begins with the earthly scenes where the astronauts rolled up a party on the occasion of the mission. Then the viewer is immediately thrown on the surface of Mars, where already carried out some work. Even really clear what they’re looking for. In movies about space and traveling through it is always interesting to watch the preparation. As the astronauts enter the ship, as the ship takes off, passes the atmosphere, overcomes a great distance, and were approaching their destination. Well and then — as scientists begin their work, take their first steps in uncharted territory, etc. Continue reading

The bombardment of comets

Possibly, comets brought water to Earth

To see exactly what is in the comet, it is necessary to analyse its substance with the help of different high sensitive devices, bringing samples to Earth. But aboard a small spacecraft such devices are difficult to place, because the size of the station Stardust 1,7×0,7×0,7 meters – about the same size as the Desk. How to take a sample of matter, flying from the comet’s nucleus at high speed? Space standards Stardust was moving slowly relative to the comet, about one and a half times slower than fly around the Earth artificial satellites. However, even this speed was several times greater than that of the bullet, the station flew over one second 6 km from the Contact of dust particles with the container of solid material at this speed (more than 20 thousand km/h) would have led to their strongest heating and evaporating. The only way to mildly catch and stop these dust particles, turned out to be a trap made of unique material – aerogel, which was established in 1931, but the big distribution has not received. Continue reading

Chronicles the life

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

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Periodic Comet
Periodic comet attracted by the Sun, sent to him, but pass due to the same sensitivity to the solar wind, which causes the surrounding cloud of dust and gases blown…

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Do I need to be perfectly healthy to fly in space?
The main problems during space flight are considered motion sickness, fatigue, dehydration, loss of appetite and back pain The astronauts can perform on the International space station not more than…

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Large planets of the Solar system
Lesson objectives: education – to deepen the students ' knowledge about the structure of the Solar system illustrate the difference in size of the planets (which is the reason for…

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