In 2519, after decades of recuperation and development, the Martians built a base covering hundreds of square kilometers, with a population exceeding three million.
The main building structure of the base was composed of hundreds of force field shields.
Under these force field shields, people cultivated farmland, laid out solar energy equipment, built factories, research institutes, hospitals, schools, commercial districts, and residential areas, forming basic urban functions.
Besides Mars, Mercury and Venus also gave birth to Mercurians and Venusians, totaling hundreds of thousands of people.
Humanity also owned several large space stations orbiting around Earth, Mercury, Venus, and Mars, each with a population ranging from tens of thousands to several thousand people.
The Moon was also fully transformed and became quite habitable, except for the gravity factor.
Humans had already thoroughly left Earth.
