When frozen carbon dioxide is all melted in the summer, distinct symptoms are revealed to Mars. They are known as the “Araneidoform Earth” because they look like spiders when seen from space. Some of these forms of earth, such as spider, are more than one kilometer, and some have hundreds of feet. They are often found in Swarms. The image above was taken by a Mars identification orbits when viewing the southern hemisphere in 2009.
The process that creates this spider formation is not fully understood, although JPL works to imitate the temperature and the pressures of Mars to re -create them.
Spring arrival to Mars also brings strong winds, and it is believed that the spiral pattern of the northern polar hat of Mars has been created for many years with winds from the center of the hat. The spiral pattern is due to the effect of Corolis, when the rotation of a planet bends the wind path.
The darker parts of the spiral are actually deep valleys that have been cut with spring wind for a long time. Chasma Boreale, which is visible on the right side of the center of the polar hat in the image, is especially spectacular. Until the Grand Canyon (about 450 km) and up to 2 kilometers deep.
Like the winds in the deserts on the ground, the sand hills move the sand hills on the surface of Mars.
The white things you see in the picture are frozen around the high hills that remain static while frozen. When the temperature rises in the spring and this ice melts, the hills begin to move again because of the wind operation.
As we saw, the start of spring on Mars is very active. Religa says you can even say “explosive”. “I imagine that it would be very noisy, with everything cracking and exploding.”
This story appeared first Wired Japan And translated from Japanese.
