The primary mission of SpaceX is to guarantee a long term presence of humanity through the creation of a multi-planetary species. According to the company, the earth is under the threat of extinction. The spread to other planets is the means of protection against planetary-scale disasters and ensures the safety of human existence in the universe not of one world only.
The planet of Mars will be the main object of such colonization. SpaceX considers Mars as the best habitable planet nearby that is potentially habitable by humans since it has some resources such as water ice and carbon dioxide. The vision around which the development is being pushed is the development of a permanent, self sustainable human presence on Mars.
The Starship vehicle is entirely made to make colonization on Mars a possibility. engineered to carry huge volumes of passengers and enormous loads of freight needed to construct stellar infrastructure, this is a full reusable launch system. The goal necessitates the level of achievement of such transport capability.
The synopsis of spaceX is to develop self-sufficient Mars cities that are much bigger. These settlements have to generate their own important resources; food, fuel and building materials; which should be based on the use of Martian resources. To make a Martian civilization sustainable in the long-term, it is important to be able to provide planetary independence in the areas of supply lines to the Earth.
In the end, SpaceX pursues the mission of making interplanetary life a common practice. The company hopes to enable the transition of humanity into a space faring civilization in which people will be able to live on more than one planet and will begin with Mars by radically reducing the cost of access to space and making mass transport a reality.
Conclusion:
The long-term aim of SpaceX is to turn humanity into a multiplanetary species starting by Mars to reduce existential threats to Earth-based humanity. To do this it will need to create massive self-sustaining and permanent cities with vehicles such as Starship. The basic mission of this is to promote human civilization from the earth.
