The Red Mars series by Kim Stanley Robinson shows this very well.
An interesting concept that appeared in various forms of science fiction is terraforming, which is the science of altering a planet’s environment so that it could be colonized. If we perfect this technology and improve space travel, we could colonize the entire solar system and maybe even some of the surrounding solar systems, which would allow humanity to establish an interstellar empire. I am thinking of tinkering with this idea with my sequel series since it revolves around a futuristic society. If we had this technology and space travel was at its maximum potential, how many planets would we be able to colonize in a few thousand years?