https://www.theguardian.com/world/2019/jan/04/china-change-4-moon-rover-jade-rabbit-2-sets-off
Citando:
"The moon’s far side is sometimes known as the dark side, although it is not darker than the near side in any literal sense. It undergoes the same phases of illumination by the Sun as the side facing Earth. But because the moon spins on its axis at exactly the same rate as it orbits Earth, one side remains permanently out of view.
It was only in 1959, when the first images of the far side were beamed back by the Soviet Union’s Luna 3, that intriguing differences were revealed. The far side is pockmarked by more craters and appears almost devoid of the seas of solidified lava, known as maria, that form the shadowy shape of a face that we see from Earth."
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