Reformed Colonizing
In some form or another, the idea of terraforming has run through science fiction for decades. The term was coined by Jack Williamson back in his 1942 story Collision Orbit, which involved the hammerblow of an asteroid impact. Gradually the idea seeped into the general body of science fiction as the problem of actually stumbling on a habitable world to settle became apparent and more intrusive measures were proposed. By the late 1980s it had blossomed into an accepted practice. Most of the early examples dealt with Mars. The fascination with colonizing the Red Planet had always been there. After the hoped-for suitability of Mars was thoroughly dashed by actual probes, other solutions informed new stories. The difficulties are nicely laid out in Kim Stanley Robinson’s Mars Trilogy. The sheer expense of the endeavor rose to daunting prominence. More solutions came to the fore. Nanobots, microfauna, slamming a planet with iceballs (comets). Proposals from the other end of the problem