Editing Exterminatus (section)

===Halo===
In the [[Halo]] universe wiping out all life on a planet happens surprisingly often, and there are many interesting ways of doing so. It is the only way to be 100% certain you have dealt with a Flood outbreak.

The UNSC has the options of nuking the planet in the bog-standard nuclear holocaust situation that's very much what you'd expect. However, their most powerful weapon is the NOVA bomb. The NOVA bomb is created by strapping together nine standard fusion warheads and encasing them in a casing of lithium triteride which amplifies the warheads destructive output that is unfortunately never mentioned but has the power to crack open a planet, earning the nickname "Planet Crackers". The first real use of this weapon was when it detonated between a planet and its moon, destroying the moon and scorching half the surface of the planet, as well as destroying three-fifths of a 300-strong fleet.

The Covenant is well known for their orbital bombardment technique known as "glassing", where through sustained high-energy plasma bombardment, a planet's surface is reduced to a glass-like material resembling obsidian. This was the fate of many human planets during the Human-Covenant War, including but not limited to Harvest, Madrigal, Eridanus II, Miridien, Paris IV, and Reach.

The Forerunners, of course, have arguably the most powerful method of wiping out all life on a planet in Halo canon: the titular Halo rings, which can cleanse either a single planet of life on lower settings, to everything within 25,000 light-years at maximum. When all seven are fired in concert, they can wipe out all life in the galaxy, which they have done before. The Forerunners have also created a device known as the Composer, which takes an organic being, destroys their body, and uploads their consciousness into a digital format. The process is extremely painful and those composed aren't always sane by the end of it. Of course, there could be who knows what kind of galaxy-killing weapons in the Forerunner arsenal that haven't been revealed yet.