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Researchers have found evidence of a liquid water surface on Mars and a so-called "lake" under the southern ice cap of the red planet, about 20 km away.
Previous research has highlighted fluids flows but it is the first evidence of a permanent water surface on the planet at the present time.
The lake bottoms, similar to those discovered by NASA's Croyose mission, show the existence of water on Mars in the past, The atmosphere of the planet has seen a wave very cold due to the smoothness of the atmosphere, making the majority of its water trapped in ice
The new evidence was found using a radar called Marsis aboard the Mars Express probe.
Roberto Orosai of the National Institute of Astrophysics in Italy, who oversees the study, told BP. "It's more likely that it's not a big lake."
Mars was not able to determine the depth of the water layer that should exist, but the # 39, the research team estimates the depth of the lake at least one meter
At the presence of a water surface. A lake, not a kind of melted water that fills the distance between rock and ice like it happens in some glaciers of the Earth. "
How was it discovered?
Radar Detectors, such as Marsis, (19659002) The white line continues in the radar results shown in the previous image represents the beginning of the Antarctic surface layer, an ice – like accumulation of water and dust, something unusual
Urosai says: "In this blue body clear a can "This means for us a strong signal of water."
What does this mean for life?
"We have long known that the comfortable surface was not conducive to the emergence of life," it is there that we get sufficient protection against harmful radiation, and that the pressure and temperature rise to reasonable and reasonable levels, "he said.More importantly, it allows the existence of liquid water, the main source of life."
This principle important in monitoring the existence of water is an essential part of the science of space biology that examines the possibility of a life other than terrestrial. Although the results indicate that there is water now, scientists have not confirmed anything else, according to the BBC.
"We are not really closer to actually discovering life," said Baetel. Results The place where we will look at the planet. It's a treasure map. With the exception of this site. "
The temperature and the chemistry of the water can also pose a problem to all possible Martian organisms.To keep the water in such cold conditions, the water is likely to contain many dissolved salts.
An astrophysicist at the University of St. Andrews, said: "It is possible that the water is very cold and contains a solution of highly concentrated brine, which will constitute a major challenge to the existence of life on the planet. "
While the presence of water provides exciting glimpses for those who are interested in l & # 39; "What we need now is that the measurements and tests are replicated elsewhere to look for similar signals, as well as for the rest of the world," said Matt Palme, from the Open University If possible, review all other explanations … "
Scientists Ifics have already found evidence of bacterial life in the depths of Lake Vostok in Antarctica, the southern hemisphere, but research on Mars is a more ambitious project.
"Getting there and getting the final proof of a lake will not really matter," says Urosai
The discovery of water confirms the possibility of life on Mars [19659021]
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