The experts found problems while searching & # 39; hydrated perchlorates on maps & # 39; Mars.
Scientists of & # 39; Caltech (USA) come to the conclusion that due to improper processing & # 39; data obtained from the Mars Reconnaissance Orbiter interplanetarju station, the device mistakenly recognizes the presence of & # 39; hydrated salt on the red planet. Thus, some areas on the planet where previously presumed the presence of & # 39; water, are in fact completely dry and lifeless.
The experts found problems while searching & # 39; hydrated perchlorates on maps & # 39; Mars, based on the information obtained by the spectrometer in the visible and near infrared radiation (CRISM). Perchlorate lowers point & # 39; freezing & # 39; water at 80 degrees Celsius, making it possible that there & # 39; liquid water in the Martian atmosphere. The existence of & # 39; & # 39 perchlorates in; Mars are also known because of airspace landing & # 39; Phoenix on the surface of the Earth and the rover Curiosity.
The presence of & # 39; minerals on Mars, scientists are judged at the thought of & # 39; different wavelengths of the planet's surface. The chemical b & # 39; special way absorb and reflect light. However, the camera does not always CRISM b & # 39; correct way, with the result that detects spots & # 39; reflected light where m & # 39; should be. The algorithms for correcting & # 39; these errors, sometimes carrying the spectra at the same length & # 39; waves such as perchlorate. Scientists have written an algorithm that allows identifying on maps & # 39; small deposits of CRISM & # 39; perchlorate, and the program showed the widespread presence of & # 39; salts on the surface of & # 39; Mars, including where there were no conditions for their formation.
Now scientists are working on a more precise method for the recognition of & # 39; perchlorate, which is based not only on spectral data. According to the researchers, the perchlorates are still present on Mars, however, it became clear that they are much more difficult to identify than previously thought.