The side represents 41% of the Moon's surface.
This Thursday was a historic day for humanity, since it successfully landed on the dark side of the moon. But what is that territory?
To understand what the "other side" of the Moon means, it is important to note that the Moon is in synchronous rotation around the Earth. This means that it uses the same time for translating around our planet rather than rotating it on its own axis so that we can not see its hidden face or "dark side".
Earlier, other spacecrafts could observe this hidden face, but no one was comfortable with it. It all started with the Soviet spacecraft Luna 3 who made the first photos of the hidden face of the moon in October 1959. It took 29 images of 66,700 km, which showed a mountain terrain and two dark regions.
Although in time, in many places in the universe, sent probes and photographs from the hidden moon, they did not descend on it. Why? It was not as easy as it seemed. It has historically been said to cause communication problems. Likewise, the interest of the countries over time diminished.
However, China has achieved this in a historic mission. Just as the USSR shot the first photos nearly six decades ago, China managed to get down to the crater on this side of the moon. Falling on a moon that will surely bring valuable information to scientists (see this note).