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Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Science https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ As a rover looking for someone else's life in the wilderness

As a rover looking for someone else's life in the wilderness



The Martian surface is harsh, dry, cold, irradiated by the environment. But ancient Mars, perhaps, was habitable for microbial life, because he maintained water. Routers that are going to Mars in the coming years will be looking for biosignatures on Martian soil, drilling and sampling under the surface to find evidence of this potential ancient life

. 2013 for a trial mission to find signs of life in another unfriendly environment. The Atacama Desert is the most modern desert region on Earth, with incredibly low humidity or precipitation. Animals and plants are hard to find, but bacteria can be beneath the surface.

"The core of the Atacama Desert in Chile is extremely dry, it's been experiencing decades without rainfall," said Stephen Pointin, research author and director of science at the Yale-NUS College in Singapore. "It has a high surface UV exposure and consists of very salty soils, which is the closest collision we have on Earth to Mars, which makes it good for testing imitation missions on this planet."

50 kilometers over two types of terrain, similar to what might be encountered on Mars. One of them was the rocky desert sidewalk, and the other was sandy and typical for a desert environment. The router also used a drilling rig to collect 32 samples at 80 centimeters below the surface.

"We have shown that a robot-rover can restore underground soils in the very Marsh Desert on Earth," he said. "This is important because most scholars agree that any life on Mars should take place under the surface to avoid harsh surface conditions, where high radiation, low temperature and lack of water make life unlikely."

  Mars? Rover Curiosity Investigates

In addition to the drill, the rover can display and analyze the landscape, visible habitat, and even geochemical features due to the installed cameras and spectrometer.

Rover found spots of unusual microbes that were highly specialized. Researchers believe that the uneven distribution occurs through soil chemistry and the lack of nutrients and water.

They compared the samples of rover with those that they took from the desert by hand. Microbial life was the same in both types of specimens.

  NASA chooses an ancient crater next to the landing of Mars

"We have found microbes adapted to high levels of salt, similar to what one can expect on a Martian surface," he said. . "These microbes are very different from those previously known on the surface of the desert."

Understanding the distribution of life in the Atacama Desert could help with the strategy of rovers deployed on Mars. s the weather on mars InSight can tell you every day "data-src-mini =" / / cdn.cnn.com/cnnnext/dam/assets/180505095658-nasa-mars%mission-insight-small-169.jpg "data-src-xsmall =" //cdn.cnn.com/cnnnext/dam/assets/180505095658-nasa-mars-mission-insight-medium-plus-169.jpg data-src-small = "http://cdn.cnn.com/cnnnext /dam/assets/180505095658-nasa-mars-mission-insight-large-169.jpg "data-src-medium =" // cdn.cnn.com/cnnnext/dam/assets/180505095658-nasa-mars-mission- insight-exlarge-169.jpg data-src-large = "// cdn.cnn.com/cnnnext/dam/assets/180505095658-nasa-mars-mission-insight-super-169.jpg" data-src-full16x9 = "// cdn.cnn.com/cnnnext/dam/assets/180505095658-nasa-mars-20011-mission-insight-full-169.jpg" data-src-mini1x1 = "// cdn.cnn.com/cnnnext/dam /assets/180505095658-nasa-mars-mission-insight-small-11.jpg "data-demand-load =" not-loaded "data-eq-pts =" mini: 0, xsmall: 221, small: 308, medium : 461, large: 781 src = "data: image / gif; base64, ROLLGODLHEAAJAJEAAAAAAP /////// wAAACH5BAEAAAIALAAAAAAQAAkAAAIKlI + py + 0Po5 yUFQA7 "/>

"These results confirm the basic environmental rule that microbial life is vague in the most extreme places of the Earth's existence, which suggests that past or present life on other planets may also be peptic", co-authors of the study Nathalie Cabrol and Kim Warren-Rhodes from the SETI Institute in a statement. "Although this will make detection more complex, our findings will allow you to focus on research on life on Mars, demonstrating that you can identify your life with a smart robotic search and selection strategy."

to drill deeper. Future studies will need to explore these opportunities.

"Mars missions hope to drill about [2 meters]and so the Earth-based comparison will help identify potential problems and interpret the results after the rovers have been deployed there," the researchers say. – he said. "Environmental research that helps us predict residential areas of microbial communities in the most extreme environments of the Earth will also be critical to finding life on other planets."


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