In 1996 found David S. McKay and his staff structures in the Martian meteorite ALH 84001, which they interpreted as traces of fossil bacteria. Morphologically similar to the meteorite found in this chain-like arranged magnetite from Magnetospirillum magnetotacticum the bacterial magnetite. However, the probative value of the structures found by many scientists is questioned, since these could also arise by purely chemical means.
On 23 January 2004 saw the European Mars Express at the south pole of Mars, large quantities of frozen water, the end of July 2005, also located in a crater near the North Pole.
End of March 2004 it was announced that researchers from NASA and ESA have independently detected methane in the Martian atmosphere. Whether the methane is of geological origin or formed by the metabolism of some microorganisms to further investigations.
Also in early 2004, the Mars rover Opportunity found rocks that must have been deposited in open standing water, and many regularly distributed spherical, contain up to 1 cm wide hematite concretions. Such concretions are also found on Earth. Under terrestrial conditions, it is likely that bacteria are involved in their creation. Whether this also applies to Mars, could only laboratory studies point to the earth.
See more micro-structures, which had discovered the rovers Spirit and Opportunity in 2004 and which had some of the interested public evidence of life will, proved on closer examination as abiotic or artificial, such as grinding marks on the instruments processed rock surfaces or filaments, which turned out as textile fibers of the landing airbags.
Research results confirm on the ground that it can give life even in extreme conditions. When drilling in Greenland ice discovered researchers at the University of California, Berkeley in 2005 in a striking depth of three kilometers amount of methane. This gas is produced in methanogenic bacteria, which survive despite inhospitable conditions such as cold, darkness and lack of nutrients in the ice. They survived only with difficulty in life - they multiply to repair DNA damage, but not significantly its population. Methanogenic microbes are a subset of archaea, which have specialized in extreme locations. Thus, microbes found in 2002 in a 15,000-year-old hot springs in Idaho. The bacteria count, as the name implies, the oldest organisms on earth. The scientists estimate the age of the Greenland colony of bacteria discovered in 100,000 years and suspect that this might come as demonstrated in the atmosphere of Mars methane not only of chemical processes, but also of such microbes.
On 23 January 2004 saw the European Mars Express at the south pole of Mars, large quantities of frozen water, the end of July 2005, also located in a crater near the North Pole.
End of March 2004 it was announced that researchers from NASA and ESA have independently detected methane in the Martian atmosphere. Whether the methane is of geological origin or formed by the metabolism of some microorganisms to further investigations.
Also in early 2004, the Mars rover Opportunity found rocks that must have been deposited in open standing water, and many regularly distributed spherical, contain up to 1 cm wide hematite concretions. Such concretions are also found on Earth. Under terrestrial conditions, it is likely that bacteria are involved in their creation. Whether this also applies to Mars, could only laboratory studies point to the earth.
See more micro-structures, which had discovered the rovers Spirit and Opportunity in 2004 and which had some of the interested public evidence of life will, proved on closer examination as abiotic or artificial, such as grinding marks on the instruments processed rock surfaces or filaments, which turned out as textile fibers of the landing airbags.
Research results confirm on the ground that it can give life even in extreme conditions. When drilling in Greenland ice discovered researchers at the University of California, Berkeley in 2005 in a striking depth of three kilometers amount of methane. This gas is produced in methanogenic bacteria, which survive despite inhospitable conditions such as cold, darkness and lack of nutrients in the ice. They survived only with difficulty in life - they multiply to repair DNA damage, but not significantly its population. Methanogenic microbes are a subset of archaea, which have specialized in extreme locations. Thus, microbes found in 2002 in a 15,000-year-old hot springs in Idaho. The bacteria count, as the name implies, the oldest organisms on earth. The scientists estimate the age of the Greenland colony of bacteria discovered in 100,000 years and suspect that this might come as demonstrated in the atmosphere of Mars methane not only of chemical processes, but also of such microbes.
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