The Fleet planet

The Fleet occupied a planet and established it as the seat of the First Space Lord of the Admiralty.

Geography
The planet had a short day-night cycle.

The Forest of Desolation, the Burning Grounds, the Valley of Agonies and the Blasted Plains were areas on this planet. The Outland Sea boiled away during the Ice Cap Wars. (PROSE: The Secret in Vault 13)

Fauna
Megalovore sharks used to live in the Outland Sea. (PROSE: The Secret in Vault 13)