Scientists on Mars in the past had the same atmosphere as on Earth

European scientists have proposed a new idea regarding how Mars was warm enough to make it appeared and was able to remain in liquid form water.

According to experts, sulfur dioxide, which appeared on the red planet by ancient volcanic eruptions created on Mars is about the same greenhouse gas balance, which is present in our world.

This scheme is also partly explains how the Earth came ecosystem, leading to the formation of life.

"Before our planet did life, the atmosphere of the Earth and Mars were very similar. Key change played ancient volcanoes actively spewing as on Mars and on Earth, and the huge stockpiles of sulfur dioxide have been released into the atmosphere and on the surface of planets, "- says Harvard Daniel Schrag, author of the article in Science, reports

The scientist explains that the Earth's climate is affected by carbon, which worked on the planet for millions of years, in addition it is the carbon combines with oxygen, formed carbon dioxide, which has had the effect of warming the Earth and the formation of the modern atmosphere.

Also, due to the presence of carbon and sulfur, and their derivatives in the structure of the Earth's generated a compound known as limestone.

Orbiters, working at the moment, Mars, constantly discovering minerals, which is composed of gray, but there is almost no carbon compounds. This fact has puzzled scientists, as the Earth and Mars in the past have followed essentially the same system.

"There is a lot of evidence that 3.5-4 billion years ago, Mars was present liquid water, but experts still can not find evidence that this had somehow affected the climate system of Mars. Other words, water on Mars and water on the earth affect the climate in different ways, "- says Schrag.

Scientists have put forward a new idea, which comes from the fact that sulfur dioxide erupted from volcanoes on Mars replaced carbon that was present in the early Earth.

"On Earth, sulfur dioxide is rapidly oxidized to sulfate and evaporated from the atmosphere, but on Mars, where there was such a large number of oxygen, he acted as Deputy greenhouse gases and more heated the planet, in addition, he was also responsible for the lack of limestone Red planet — instead, there appeared minerals with sulfates, "- says Schrag.

According to the scientist, it is this difference in primary cells and played a key role in the further evolution of the divergence of Mars and Earth.

Note recent Mars rover Opportunity has found the "most significant" evidence that in the past on Mars had water in liquid form — plaster track.

Earlier in Canada have found bacteria that can live on Mars — they feed on methane.


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