Editing Exterminatus (section)

===Star Trek===
In [[Star Trek]] the Federation's General Order 24 calls for the extermination of all life on a planet. It is threatened multiple times, but never seen on screen. One novel and (very weird) comic do show it, however. Just the original Enterprise on its own is supposed to be able to accomplish this task. While this would take time, the fact that it's theoretically possible without preparing the ship at a shipyard indicates Federation ships are quite a bit more powerful than the Federation's peaceful goals suggests.

More famously, ''Star Trek II: the Wrath of Khan'' introduces the Genesis Device. When used properly it's a planet-seeding device that can instigate the formation of life on dead worlds. In practice the massive amount of energy released means it also functions as a planet-glassing bomb, killing everything that already lived there.