In the Mars surface, in some slopes near the Equator, strange dark lines have been identified that appear in the station temperate, since the end of the spring until the beginning of the autumn, and that disappears when the cold arrives. The scientists who are shortage do not know in question, suggest could form when flowing salt water, but they recognize that they do not have conclusive tests they demonstrate that it. In addition, some does not appear signal of water in those zones in other observations. Electron research oftentimes addresses this issue. The water would have to be salty, like the one of the terrestrial oceans, because the temperature is so low there that if outside fresh water would be congealed. On the other hand, the temperatures are too high so that it is carbon dioxide ice. Source of the news: : They appear strange Mars furrows from the spring to the autumn.