Space Pirate Homeworld
An image of the location.
Series Metroid
First game Metroid Prime 3: Corruption

The Space Pirate Homeworld is a planet featured in the Wii video game Metroid Prime 3: Corruption. It is probable that this is not the official name, though this is what it's known as in the game. As its name suggests, it is the homeworld of the Space Pirates, though is in a vast region of space. It took many years until the Galactic Federation were finaly able to research the origin of the planet, though ultimately after finding data on Tallon IV were they able to learn more about the Space Pirate's origins.

After the Space Pirate's attack on Norion, where a large Galactic Federation base was held, the federation was finally able to obtain the coordinates of the planet, and to confirm this they sent out one of their bounty hunteres - Gandrayda, who soon later was able to confirm this location. Now with these coordinates, the Galactic Federation sent out an attack on the Pirate's homeworld.

Oddly, though later understandably, it was learned that the Space Pirates sent a Leviathan seed composed of Phazon towards their planet, which allowed them to have an almost unlimited source of Phazon for them to use.