According to the NASA, the appearance of the white serpent is the air spinning and look for interesting dust from the surface of Mars. Dust can be pulled by the gravity of Mars is relatively small.
Hot sun heats the surface of Mars. The air around the heated surface starts to rotate and move up. Finally, the mass of air that rise and carry dust from the surface.
NASA, as reported by Space, Thursday (08/03/2012), revealed that not only Mars that could have a similar phenomenon. The appearance of the same could happen on Earth. Wind on the Earth and Mars are equally affected by the heat.
This image is the umpteenth time resulting Reconaissance Orbitter Mars spacecraft. The spacecraft was launched in 2005 with the task of researching the ancient Martian environment and how the influence of wind and meteorites hit the surface of Mars today. The appearance of "White Snake" on Mars.
