Latest news!!! Terrestrial bacteria can survive On Mars



Some bacteria could go through flight to Mars on probe Phoenix. But the probability of such way of colonization of a planet practically is absent. The manipulator in length of 2,35 m by which the probe is equipped for a fence of tests of an ice and a soil, was sterilized and has a protective film which should not pass through itself bacteria. But, as informs New Scientist, some kinds of bacteria are hardy enough to live in martian conditions.

Overwhelming majority of organisms do not maintain ultra-violet radiation and quickly perish. Mars has no protective atmosphere, that is why ultra-violet beams freely reach its surface.
Experts of Laboratory of jet movement NASA in Pasadena (JPL) have copied all microorganisms which were in a place of assembly of a probe. Among them there were 132 various bacteria, and their general number has made approximately 100 thousand on sq.m. More close to start of bacteria there was 26 thousand on sq.m., and number of versions it was reduced up to hundred. Among them the some people can live in conditions of a heat, a cold and salinity. And the bacterium bacillus pumilus has appeared capable to maintain high dozes of a ultraviolet.
" It is the most hardy organism which we ever studied ", - microbiologist JPL Parag Vaishampayan who has presented the data on 108 and * 8722 has declared; й to a meeting of the American microbiological society in Boston. To simulate martian conditions, researchers place bacteria in special chambers. In them pressure, temperature and forces of ultra-violet influence generating approached to real. First all bacteria were lost, but after scientists have added a soil of Atacama desert and the Hawaiian volcano, the some people could survive.
" These data prove all, that 100 % of sterility to achieve it is impossible ", - one of researchers microbiologist Rokko Mankinelli has told. He added, that obvious shortage of water and nutrients on Mars can become a serious obstacle for settling Mars by terrestrial bacteria. Representatives NASA assure, that all possible measures for sterilization Phoenix have been accepted, however the small probability of a survival of bacteria exists. If the probe will find any microorganisms on Mars, it will be necessary to check, whether they are delivered from the Earth.

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