Mars in the distant past was sufficient conditions to sustain a life as we understand it on Earth. This was announced by the NASA to present the results of the analysis to a rock collected by the robot ‘Curiosity’ in the area known as Yellowknife Bay , which seems an ancient stream or small lake inside the crater Gale . “Mars may harbor living microbes , “said Michael Meyer sharp, the mission’s chief scientist. The finding does not imply that there is life, but the chances are now growing exponentially.
Mars had a past water and even that flowed in abundance on its surface was already somewhat known and supported by extensive testing, but now NASA scientists are convinced that drinking water was that microorganisms could grow in it. There was an acid medium, but neutral or slightly alkaline pH, and also was not particularly salty. “A key issue of the mission was to get information about whether Mars would have had in the past a livable environment. Now know that the answer is yes,” said Meyer, surrounded by all the mission team.
To study the rock, scientists set to work two of the devices of ‘Curiosity’ , SAM and CheMin. The analysis identified specifically sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon, which are all essential for life. 20% of the samples also proved clay minerals , which means that could be formed only in the presence of liquid water.
The data indicate that the environment of Yellowknife “could have provided the chemical energy and other favorable conditions for microbes,” NASA said in a statement. The rock is composed of “fine grain containing clay minerals, sulfate minerals and other chemicals,” he adds. This humid environment, unlike other in the same Mars, is not very acidic or salty.
In this sense, the principal investigator CheMin, David Blake, said “clays constitute at least 20% of the sample.” “Minerals are a product of the reaction of water with relatively fresh igneous minerals also present in the sediment,” he says NASA. Just do what you can not guarantee is where the chemical reaction occurred: in the sedimentary area, during transport of sediments or region of origin.