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Scientists have found out when Mars was replaced by an atmosphere of
Mars is not suited to life : The Red Planet is cold and arid climate, and its atmosphere is mainly composed of carbon dioxide. According to the latest data collected by the rover “Kyuriositi” as well as studies of ancient Martian meteorites, the atmosphere of Mars is not changed for the past 4 billion years.
Scientists believe Mars lost its atmosphere about 4.5 billion years ago. Today, the thickness of the gaseous envelope surrounding the Red Planet is about one percent of the Earth’s atmospheric layers.
Presumably, most of the Martian atmosphere was lost very quickly – says researcher Paul Mahaffy of the Center Goddard Space Flight Center, the author of two new studies on the atmosphere of the Red Planet, published in the journal Science.
And no wonder, since 3.5-4 billion years ago the solar system was in chaos, the planets were fired by space objects. As a result, the Moon and Mars craters were formed. It was a period of high activity.
This is the most accurate analysis of the atmospheric conditions of Mars since the study of the planet Viking spacecraft in the 1970s.
We fundamentally disagree with the measurements made by the Viking, except for some moments. We found a little more or less of nitrogen argon, as reported by Viking.
A detailed chemical analysis allowed scientists to understand what elements missing from the atmospheric layer of Mars, as well as a better understanding of the composition of the gaseous envelope of the Red Planet.
Scientists hope that a comparative analysis of the samples’ Martian air “taken” Kyuriositi “with the chemical elements inside the meteorite of Martian origin that fell to Earth sometime, will help them learn how to look atmosphere of Mars billions of years ago.
For more information about the atmosphere will be received after the launch into orbit of the Red Planet MAVEN spacecraft , scheduled for launch in November 2013 year.
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Tags: Video , Kyuriositi , Mars .
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