User blog comment:PitaKang/Funday Monday 3: What would an interstellar civilization look like?/@comment-665531-20130430220327/@comment-32656-20130501075049

Terraforming in most regards is easier than you'd think - just bombard the planets with Asteroids and Comets and let plants loose on it later on. As to how.... well, NASA is going to try and catch one. Not hard to modify that concept.