NASA experts are studying the new data obtained by the probe Dawn, exploring asteroids. On the West Side, which is one of the largest asteroids, the probe was fixed mysterious gullies.
In the study of images of asteroid, scientists have identified two main types of gullies - straight and short as well as long and winding. With the first difficulties have arisen, as they have already met the researchers on the moon.
"Direct shallow depressions that can be seen in the West, are textbook examples of traces of such a flow of dry material, such as sand," - said Jennifer Scully, an expert in deciphering images from the University of California at Los Angeles.
More unusual second type of gullies. These gullies are long and sinuous in form, they end up alluvial fans of the breed. Upon detection of such gullies on Earth geologists, most likely, would have concluded that they were formed through the normal flow of water. These gullies are present on Mars, about their nature is still ongoing debate - some argue that they are formed with water, others believe that there are other explanations. It may well be traces of carbon dioxide, or "dry ice."
"We need to do a very thorough analysis of the data about these mysterious gullies on the West Side, before you speak confidently about their origin," - said Christopher Russell, a research project manager Dawn.
Dawn probe has been launched specifically to study the asteroid Vesta and the dwarf planet Ceres in September 2007 In 2011, the probe flew to Vesta, made the necessary shots and finished its work in September of this year. Dawn then went to Ceres, to which he will reach is expected by 2015.