Hydra (EternalSonic1997)

Hydra is a dwarf planet in the Siam System, and is the final planetoid of the entire system. It was briefly occupied by the UNSC Sanctuary of Spring in the late 2530's when the Syntheticis were encountered. It and it's system are off limits from even the Covenant thanks to the Synthetics. Much of the planet is unconfirmed, but the planet is around the same size as Sol Dwarf Planet Pluto.

During the War
The Planet is alleged to be under complete Synthetic control, and as such much of it's history is completely unknown due to the lack of any knowledge regarding the Synthetics. However, in the 2530's the planet was the site of a brief battle between a Synthetic capital ship, the UNSC Sanctuary of Spring and many other UNSC Vessels. The Other ships were destroyed and plummeted down towards Hydra while the Spring was abducted. Other than that event, Hydra has been unused through-out the entire Human-Covenant War.

Post-War
Following the (first) Human-Covenant War, specifically in 2572, Hydra was briefly attempted to be reached by UNSC forces once more. Mainly for it's supply of the elemnts Hydrogen and Nitrogen aswell as the System's habitable planets. However, upon reaching Hydra the UNSC Colony ship UNSC Kamacuras was shot down by what were supposedly Synthetic Fighters and crash landed on the planet Hydra. The crew is alleged to be dead as there is no oxygen on Hydra. However, many civilians still have hope. It is also rumored that they were taken by Synthetic forces.

Trivia

 * It is named for the Hydra in Greek Mythology, the dragon with eight heads that grew two more whenever Heracles (Hercules) cut off one of it's heads.
 * It also got it's name partially because of it's Hydrogen atmosphere.
 * It's the only planet in the Siam System that has been seen more than once.
 * It is EternalSonic1997's first Fanon Planet to have it's own article.