Named after the ancient mythological underworld, Hades is an ancient battlefield of the dead. Xenoarchaelogists theorize that a system-wide civil war ended in the self-annihilation of the civilization. The UEE registry lists this unclaimed system as having three and a half planets. The "half planet" is Hades IV, which has been split in half by a mysterious force. Hades has endured as an archaeological curiosity for both scientists and the public alike, some of whom are convinced the Hadesian planet-killer tech is somewhere in the system.