Interstellar Habitat Manufacturer Category: Art, Space
There will be a time when humans will travel to other stars. This journey of exploration and discovery could take generations so it would be important that the expedition take all of the resources they will need with them. By pushing a large asteroid, they would be able to manufacture fuel from the asteroid itself as well as using the metals contained within the asteroid to manufacture the large habitats that they will be living in when they get to their destination.
By constantly adding more living space while in route, it enables the population of the travelling party to grow and become a settlement, spreading humans throughout our galaxy and ensuring the survival of the human race.