Scientists get the first evidence of how the mysterious "spiders" form on Mars | Video | CNN

For many years, scientists have theorized that the formation of the so-called "spiders" on Mars is due to a process of sublimation.

Now for the first time a group of researchers managed to confirm with clear evidence the theory of how this phenomenon originates on the surface of the red planet, and that until now it has not been seen anywhere else in the solar system.