Discovery Date: 23X0
Mass: 2.7 billion teratons
Class XVI Planet
Atmosphere: Nitrogen, Methane, Carbon Dioxide, Uraniuoxide, Sulfur Concentrate in high pockets above the atmosphere.
Distinct Features: Acidic lakes, constant earthquakes and Volcanic activity.
The crust of the planet seems to almost be hollow due to all the acidity the planet spews forth from its volcanic activity. Huge maze-like structures stretching at times dozens of miles, all intertwine making one horrific maze after another. Further exploration of the planet's inner depths is impossible, due to the immense risks of tunnel collapsing and lava tube bursting. The thought of being trapped miles beneath this deadly planet is too much of a risk on any survey team's mind to risk in the name of science.
Presumed to be the home world of origin for the species known as Metroid. At the top of the food chain in their ecosystems, it is a delicate balance between predator and prey. Creatures here have evolved and adapted in ways that reflect the planet itself: just as the planet SR388 is unforgiving in itself, the creatures that live here are no exception. They seem to have been able to adapt to the acidity in the air and not only have they survived, but flourished in great swarm numbers. Also, a number of mechanical machines have been noted moving about the corridors of the planet, but by whom were they put there, and what are they guarding remains a mystery. On a side note, the remains of a strange civilization have also been found, indicating that there was once a strong civilization here, although to this day, no live specimens have been found.