How did Partos's yin and yang face come into being?

In fact, scientists have already answered this question. NASA found a huge invisible ring around Saturn. Most scientists speculate that the dust in the halo splashed on the surface of Titan, forming a black area. The substance formed in the black area of Titan can absorb sunlight, which makes Titan's appearance as black as asphalt and as white as snow. So it's called yin and yang face.

But this year, according to the latest images sent back by Cassini Saturn probe, the secret of yin and yang faces has been basically revealed. As scientists have speculated, the main reason for Titan's yin-yang face may be sunlight. However, some scientists have put forward different views on the formation of black areas, and some explanations are autobiographical, which leads to a thin layer of dark matter on the surface of the front hemisphere when Titan rotates slowly around Saturn to enhance the absorption of sunlight by the ice layer. ?

The pictures sent back by Voyager and Cassini show that the dark matter facing Saturn's orbit extends to the other side near the equator, and the bright matter opposite is mainly composed of water ice, and its brightness is 10 times higher than that of dark matter. These materials pass through the North Pole and the South Pole and extend to the front. This is actually a photo of Cassini flying over Titan in September 2007 10, which was taken by the camera of the imaging science subsystem carried by Cassini.

In addition, this close-up photo provides some clues for scientists, showing signs of thermal isolation. This theory holds that water ice moves from a warm area facing the sun to a colder area on the polar surface. Therefore, the former brightness darkens and the temperature increases, while the latter brightness increases and the temperature decreases. Denk's scientific paper points out that water-ice migration plays an important role.

The question of how Partos's yin and yang faces were formed is explained here today.