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    Home > Biochemistry News > Microbiology News > Russian spotting microbes on outer surface of space station

    Russian spotting microbes on outer surface of space station

    • Last Update: 2020-06-20
    • Source: Internet
    • Author: User
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    Is there any living life in space in harsh living conditions? To answer this question, Russian researchers took several samples from the outer surface of the International Space Station and found fragments of DNA (deoxyribonucleic acid) of six microorganisms, spores of one fungus and one type of bacteria that could survive in space, some of which may have come from EarthRussian National Space Group issued a press release on the 29th, said that the International Space Station astronauts in 2010 to 2016 in a number of spacewalks, from the outer surface of the space station to extract 19 samples of fine sediment, and bring it back to Earth in isolation from the outside worldthe Russian Space Group's space research institutions, "Central Machine Manufacturing Research Institute" and the Russian Academy of Sciences Institute of Medical Biology, after many molecular biology studies and tests on the above-mentioned samples found the vitality of bacillus spores and the bacteria of the genus jintozo, and found them about 45% of the total number of testsin these samples, Russian researchers also found dna fragments of a bacterium similar in form to dna fragments of a bacterium in the soil of Madagascar, AfricaAnother dna fragment of a mycobacterium bacteria, whose "master" may be a plankton bacteria in the Barents Sea in northwest RussiaIn addition, the researchers found DNA fragments of the spore yeast-genus fungus, cystic bacteria, Delft bacteria and the original archaea in sediments outside the International Space StationThese broken genetic materials are found about 70 per cent of the total number of testsexperts of the Russian Space Group pointed out that the academic community generally believes that the "upper limit" of the Earth's biosphere is 10,000 meters above sea level, if future studies can confirm that the spore bacteria that survive outside the International Space Station did originate from the Earth, or the "master" of the above-mentioned DNA fragments also home outside the station and its home is also Earth, then the boundary along the Earth biosphere should probably be rewrittenRussian researchers have speculated that the microbes and their cellular matter may not have been carried into space when the Iss international space modules liftoffIt has been argued that life matter originating from Earth can drift away from the Earth's dense atmosphere into near-Earth spaceSo the space station, which orbits about 400 kilometers above the Earth's surface, will be an excellent facility for studying whether and how suspended microbes can "escape" from Earth, and the results are expected to be used to protect the outer shells of future deep space probes and interplanetary space stations
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