Helios IV

Helios IV is the outermost planet from the sun of the [Helios system](https://robertsspaceindustries.com/galactapedia/article/0KxpdzWBK4-helios-system), [United Empire of Earth (UEE)](https://robertsspaceindustries.com/galactapedia/article/VyvyKxy4v6-united-empire-of-earth). Although it is covered in thick sheets of ice and lacks a substantial atmosphere, the UEE military operates a network of outposts on Helios IV, located deep underground. The purpose of these facilities has never been publicly stated. Locals speculate that they are used for black-ops training or secret research, but no evidence to support these claims has ever been found.