Harx

Harx is an intensely volcanic planet in the Mongor System. Hideaway for intergalactic fugitives and paradise for geologists, it supports a small economy of non-permanent observation-stations. The planet is split almost in-half and has a large, unidentified green crystalline object floating above its exposed core, spinning slowly on the planet's polar axis.

There is much yet to be learned about Harx, and at the time of publishing, Mongor hasn't staked a claim on it despite it being within their system.