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No known life in the dust clouds on Mars, but microbial life can survive in dust, according to new results from Danish researchers. Here tracks in the Martian soil deposited by the probe Mars Phoenix Lander (Photo: NASA / JPL-Caltech / / University of Arizona / Max Planck Institute)
Explorers to Mars should only take a small spade forward if they want to look for microbial life on the planet. Terrestrial bacteria can survive if they are only covered by a two centimeters thin layer of Martian dust.
The laboratory findings paul gauguin cruises are published in the latest edition of the scientific journal about life in space, astrobiology. The results give hope to find native Martian bacteria, but also opens up the possibility of imported terrestrial bacteria can contaminate the planet.
"When we examine soil samples, which have been protected by two centimeters earth, we see no effect on the bacteria," says Kai Finster, Associate Professor of Biological Sciences, Aarhus University, and a member of the multidisciplinary `Mars Group` at the Faculty of Science. Two centimeters shield
But the new research shows that if you dig two centimeters down in the Martian paul gauguin cruises soil, the microbial life so well protected that the alien surroundings do not kill terrestrial bacteria.
The bacteria, which then comes as stowaways with spaceships, can potentially destroy a fragile ecological balance on Mars. And when only two centimeters dust to prevent bacterial death, one can easily imagine that bacteria from the soil to survive.
Marslab
Soil samples with bacteria from Spitsbergen replaced paul gauguin cruises the real Martian soil, and a vacuum chamber replaces the planet. The vacuum paul gauguin cruises chamber was filled with an atmosphere similar to that found on Mars, and the temperature paul gauguin cruises is controlled so that it behaved like a Martian summer. From minus 41 degrees paul gauguin cruises to 22 degrees.
NASA's space probe LADEE has sent its first pictures from the moon back to Earth. The purpose of the probe is to try to solve the mystery of the strange glow that astronauts back from the Apollo missions observed at the lunar horizon.
Before humans began to cut down trees to make room for agriculture, suited Europe's nature paul gauguin cruises itself. Danish researchers have now found out how Europe looked when only plants and animals shaped the landscape.
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NASA's space probe LADEE has sent its first pictures from the moon back to Earth. The purpose of the probe is to try to solve the mystery paul gauguin cruises of the strange glow that astronauts back from the Apollo missions observed at the lunar horizon. Read more
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