In the UK, scientists have found an ancient cosmic dust
Swiping one of the scientific research on the white cliffs of Dover, located on the coast of England, in the narrowest stretch of the English channel, scientists have found a fossilized space dust.
To identify it was by conducting a comparative analysis that was used and the samples, previously detected in Antarctica. Archaeologists found a total of 76 micrometeorites that fall to Earth 87 million years ago.
The identification process is hindered by constant changes of chemical composition due to substitution of own source of minerals, trapped on earth after space. But the result still possible to obtain, due to the fact that there is a basic structure. It experts hope to identify the processes through the universe millions of years ago. Including scientists will receive information about the consequences of the collision of our planet with asteroids – because of the bumps of cars against each other, tiny particles scattered in space, and some of them fell to the Ground. Given that the samples very much, then scientists assume that they will be able to obtain a large amount of information regarding the events that took place in the Solar system. Besides, experts have found and other criteria are the study of cosmic dust particles, in addition to chemical analysis. Information about research and existing results published edition of Earth and Planetary Science Letters.
The white cliffs of Dover framed by the coastline of the Strait of Pas-de-Calais, their slopes are in some places more than a hundred meters in height. Cliffs – part of the hills of the North downs, they look awesome, because they have a graphic appearance, thanks to the mixture of chalk and silicon. Black silicon band effectively allocated on a white background, creating a gorgeous picture. Thanks to the contrasting colours of Dover white cliffs are visible even from Cape Gris-Not located in France. Besides, seamen have long been considered a symbol of their proximity to England. It is noteworthy that this is not the only chalk cliffs in the South-East of the country, but they are the most popular, they have all dedicated works of many authors.
The geological origin of the rocks is gradually espressomaschine shell superimposed on each other layer after layer, the result is a chalk which is a soft kind of limestone. When the water receded, under the influence of sea and wind, Mel was fast enough to collapse. The soft sections of rock eroded by water entering cracks under the influence of fluctuations in temperature, formed to further cracks. Plants that, by fate, are trying to grow at the difficult rock’s surface, exacerbating the process of destruction of rocks, as their root system is embedded in the loose surface rocks.
According to estimates of experts, annually from space to Earth arrives about 30 thousand tons of dust, but as it is, in fact, is a microscopic particle, then find it in the form of deposits almost impossible task.
By the way, on the relationship of the origin of mankind and the advent of the world different cells of the space, there are also different versions. Among them there is this: with the meteors fell on the Earth, our planet was hit molecules of organic compounds and their fragments. They are formed in interstellar matter, which consists mostly of helium and hydrogen, which mixed with the elements oxygen, nitrogen and carbon. The hypothesis that the origin of life on Earth found unexpected confirmation when biologists conducted a study of permafrost. It was then proved that among the frozen soil and ice for a long time can remain viable microorganisms. Living cells can exist in a state of suspended animation, while retaining the ability to life for a long time – as we know, permafrost is present on Earth many millions of years and periodically I find a rather interesting fossil, which is well preserved. According to statistics, the area of permafrost is about 40 percent of the globe.
Scientists of the Institute even in the 80-ies of the last century studied permafrost in the basin of the Kolyma river. The average annual temperature here is in the range from minus 7 to minus 67 degrees Celsius. Local frozen soils have a pretty solid age three million years. Just imagine how much bacteria and other microorganisms capable of living, have accumulated here during this time. The local rocks are extremely valuable to humanity, as they contain a huge number of these organisms. Microbiologists conducted a study and reported that the structure of the cells in these organisms are not violated. According to scientists, one gram of rock contains hundreds of millions of living cells.
In addition to permafrost, the bacteria also can be quite successfully exist in more complex organisms, such as fungi, yeast, algae. Bacteria tend to multiply even at very low temperatures – down to minus 25. But to be a long time, retaining the ability to life, they can cold to 240 degrees, which is quite adequate space temperatures, and is another confirmation of the hypothesis about the origin of life beyond planet Earth.
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