Scientists from the University of Barcelona in Spain found that the majority of inhabited planets must be covered with oceans by 90 percent. Such conditions create difficulties for the development of complex organisms, therefore, Earth-like habitable planets are exceptionally rare in the Universe. It is reported by Gizmodo.
According to the researchers, the ratio of the areas of land and oceans is influenced by such factors as the total amount of water on the planet available to the content space and the presence of troughs and ridges. If the oceans were small and elevation is small, the water can cover almost the entire surface of a celestial body.
Planetary scientists have developed a computer model that showed that almost all the planets where water is present, should be almost completely covered with oceans. On those rare occasions when drying occupies a large part of the surface, formed an extensive wilderness, which also prevent the emergence of complex life forms.
Earth is the exception to the rule. Its topography allows continents and Islands occupy about 29 percent of the entire area of the planet over millions of years that led to the emergence of large terrestrial animals.
Visitor who came to the concert by American singer Ariana Grande in Manchester, after which the attack occurred, reported "almost zero" screening during the entrance to the stadium. It was not a framework of metal detectors, did not inspect the bags. The only thing that was interested in security, — the presence of the audience bottles of water.
The new head of the Moscow metro appointed the first Deputy head of the subway Viktor Kozlovsky. He was in charge of maintenance on infrastructure, rolling stock, communications and information technology. Dmitry Pegov will become the Director of passenger traffic of the Railways.
The conveyor of the joint venture "GM-AVTOVAZ" from may 17 suspends. Stop work is the fact that the supplier "GM-AVTOVAZ" plant "Autocomponent" has stopped supply of parts required for vehicle Assembly. The timing recovery operation of the pipeline not specified.