Some evidence of the presence of Mars liquid water may be untrue
Scientists at the California Institute of Technology have said that the incorrect processing of data from Mars for an intelligence orbiter could lead to the fact that the probe could mistakenly identify the presence of hydrated salts on the red planet, Chronicle.info wrote, referring to Telegraph.
This means that some areas of Mars, which at this time suggest the availability of liquid water and living conditions, may actually be dry and lifeless.
Experts found a problem in searching for hydrated perchlorates on Mars maps based on information from the visible and near-infrared (CRISM) spectrometer. Perchlorates reduce the freezing temperature of the water to 80 degrees, making it possible to have Mars liquid water. Traces of the presence of perchlorates in Martian soil were discovered by the spacecraft Phoenix and Mars Curiosity Rover.
The presence of minerals on the planet, researchers tested to reflect different wavelengths of the surface because the chemical somehow absorbs and reflects the light. However, the CRISM camera is not always correct to detect reflected light spots where they should not be. Algorithms for correcting such errors sometimes make drops in spectra at the same wavelength as perchlorate.
By making adjustments to the CRISM algorithm, the researchers had the opportunity to consider even the smallest traces of perchlorate on the surface of Mars. The result is that perchlorates cover almost the entire Red Planet. A deeper examination shows that salts are present even when there are no geological reasons for their occurrence.
Scientists say this indicates that some data on the presence of perchlorates on the surface of Mars proved to be inaccurate. Researchers stress that this does not mean that the salts of the red planet at all, but that means they are harder to find
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