A small satellite surrounded a huge gas planet, floating in the cold and dark void. Like most celestial bodies in the universe, its thin atmosphere could not retain its temperature, causing this land to be in a low-temperature environment of-70 to-80 degrees Celsius all year round.
This wasn't a life planet in the traditional sense.
This was a vacuum environment in the universe. There was no air, and it was destined to be cold and dead.
Although this small satellite still had day and night, and the " solar radiation " in the distance during the day was still not low ...
There were now seven continents and thirteen intelligent races. In just seven or eight years, they had begun to build simple tribal civilizations, building treehouses or digging holes to live in.
However, the development of their civilization was extremely slow.
...
The sun was shining brightly.
Xu Zhi and Caroline were walking in the sky of the small planet.