Perhaps we are the Martians. While it is a scientific theory. Some scientists hold to the theory that life originated on Mars, then to emigrate to Earth millions of years ago, an Italian newspaper reported today La Stampa (translation online Inopressa).
This theory, developed by dozens of years, but the data obtained as a result of ongoing NASA space research, again drew attention to the subject. A few days ago, the U.S. space agency said that one of the Mars rovers have found evidence of the presence of water on the planet. We are talking about indirect evidence, based on the detection of certain breeds that are millions of years ago were under water, according to the mark left on the surface. This, however, was enough to whet the theory that if there was water, then on the Red Planet was, and the life. And if now there is no life on Mars, then for some reason it was destroyed.
According to some scholars, such as Andrew Knoll of Harvard University and Bruce Yakoski from the University of Colorado, billions of years ago Mars enveloped thick atmosphere of carbon dioxide. This substance has formed a kind of greenhouse effect on the planet's surface and formed lakes, and oceans.
According to scientists, life on Earth appeared 3.5-3.9 billion years ago. Perhaps on Mars, it appeared even earlier, because the conditions were more favorable. The absence of tectonic movements and earthquakes contributed to the fact that the chemical composition of the atmosphere was different than on Earth.
Under these conditions, a result of photosynthesis of plants produce more oxygen, which facilitates the development of the first microorganism. Furthermore, area Red planet twice smaller than the Earth's surface that weighs 10 times greater than Mars. For this reason, Mars was less favorable target for meteorites that over 500 million years bombarded Earth and Mars, destroying the surface and evaporating the oceans. It probably gave microorganisms on Mars is another chance for survival.
If these theories are correct, it remains only to understand why at a certain stage of life on Mars has disappeared, but it continued on Earth. Scientists haveseven major versions.
microorganisms were killed by a sharp decline in temperature. Carbon atmosphere blown into space, and the volcanic activity was not so active to offset the losses, and the greenhouse effect, thus ended. Result: Mars was the same as Antarctica, but without the atmosphere.
microorganisms "dry." There, where the rover Opportunity has found stones that once were under water, found a large quantity of sulphates, which suggests that there was a lake.
life is extinguished. When the plants were frozen or dried, they stopped producing oxygen, and then came to an end.
The fourth version: hunger. As the water has disappeared or turned into ice, the microorganisms "eat" all that was possible, and they died.
they "fry". The Red Planet was a magnetic field to reflect the solar winds, and its thin atmosphere could block ultraviolet rays. Therefore, small organisms were killed.
life is still there, but she hid beneath the surface of Mars. This is the most optimistic idea is based on the fact that on the Earth to a depth of one kilometer of live microbes. When on the surface conditions were not suitable for life, small organisms moved into the soil. Bark Mars protected them millions of years of cosmic and ultraviolet radiation, and the ice came under the surface has melted and allowed these organisms to survive.
On the seventh version little Martians moved to some more hospitable planet such as Earth. When meteorites began to bombard the surface, they have made a terrible effect. Such a collision with a Mars space bodies were so strong that the Earth got the rebound smaller meteorites — fragments of rocks of Mars, such as have been found in Antarctica. Researchers concluded that these fragments have never warmed up to a temperature such that the bacteria were inside, could have been killed, and so life from one planet to another jumped.
In the last few years have been carried out and other more in-depth research, the results suggest that some earthly bacteria like Bacillus subtilis and Deinococcus radiodurans may, within six years of living in a space orbit, carrying cosmic radiation and the enormous power released by the explosion, which accompanied the fall of the meteorite. After billions of years, these tiny organisms have evolved into larger, which we can see today in the world, they are all descendants of Martians.