Oso IV

Oso IV is a terrestrial planet in the [Oso system](https://robertsspaceindustries.com/galactapedia/article/bZkAMEarPd-oso-system), and is the fourth planet from its sun. Lacking a core, it has an undifferentiated interior that is rich in a wide variety of minerals. Soldiers from the nearby [United Empire of Earth UEE)](https://robertsspaceindustries.com/galactapedia/article/VyvyKxy4v6-united-empire-of-earth) Army observation base [Chimera](https://robertsspaceindustries.com/galactapedia/article/RMN2oE45WK-ob-station-chimera) must keep Oso IV under guard to prevent rogue mining operations from forming there. In 2877, the [Army](https://robertsspaceindustries.com/galactapedia/article/RxnX5JOZ7Q-uee-army) made its largest arrest when they discovered an underground mine in the equatorial region that had been in use undetected for over 3 SEY.