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Lake on Mars rover Curiosity found - VIDEO PDF Print E-mail
Wednesday, 10 December 2014 17:38

 


The data transmitted to Earth rover Curiosity, prove that the mountain Sharpe formed from sedimentary rocks in a huge lake that once fills the crater Gale, says NASA. Scientists suggest that the climate of ancient Mars may have contributed to the formation of lakes in different parts of the planet.



The problem of formation of Mount Sharp height of about five kilometers in the crater Gale many years remained a mystery to scientists. Judging by the images obtained by Curiosity, it is formed from sedimentary rocks, and the structure of geological strata indicative of repeated filling and evaporation of water that filled the crater.

 

"If our hypothesis of the origin of Mount Sharp is correct, it refutes the notion that warm and wet conditions on Mars were temporary and local character, and there were only underground - says one of the project leaders Curiosity Ashwin Vasavada. - It can be assumed, more dense atmosphere of ancient Mars contributed to an increase in temperature on the planet, but we can not yet explain the mechanism of this phenomenon. "



Currently, the rover is studying the lower layers of sedimentary mountain Sharpe - 150-meter section at its base. It is assumed that the river brought into the lake mud and sand deposited in the mouth and the delta form - in the same way as happens in the world. This cycle is repeated many times.



Exactly what this process occurred many times, allows scientists to investigate the interaction of air, water and sediment, says project participant Curiosity John Grottsinger.



"As soon as the rover will climb up Mount Sharp, we can see changes over time as the chemical composition of the lake - he says. - So far, our hypothesis is confirmed, these data define the direction of research for the next year."

The study of mountains Sharp will allow to plan future missions to search for signs of life on Mars, says lead researcher on the project NASA to Mars Marc Meyer.



"The size of the lake in the crater Gale, as well as a long period when it was filled with water, suggest the possibility that there existed sufficient conditions for the initiation and maintenance of life" - said the scientist in a press conference, writes The Guardian.

He added that the new study, which has not yet been published, indicate that in the crater Gale alternate wet and dry periods, which refutes the theory that the period of warm climate on Mars existed only at an early stage and did not last long.

New data summarize the information obtained Curiosity in the two years since landing on the Red Planet in 2012. During the time the unit has overcome some eight kilometers and a few months ago got to the foot of Mount Sharp in the crater Gale. It is believed that the crater 150 kilometers in diameter was formed after a collision with an asteroid. Curiosity was created to explore the crater.


НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

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