By the time our technology reaches the point that we could feasibly travel to and inhabit another distant planet, and with all the challenges with that (space t

By the time our technology reaches the point that we could feasibly travel to and inhabit another distant planet, and with all the challenges with that (space travel, terraforming, radiation protection), couldn't we feasibly create or move a planet or gigantic space station built from materials of another planet into whatever orbit we want?