Horus II
Discovered by a team of independent scientists, the Horus system was deemed useless at first. However, some astronomers were quick to point out that Horus II was an "improbable planet" as it should've melted away considering how close the planet was to its star. Scientists decided to investigate why this was, and found out that Horus II was made out an extremely sturdy material that could resist massive amounts of heat. Thus, a station was built in the system to mine and study this material to use for ship armor.