Golarion-Space contains 8 planets, though they haven't been thoroughly explored.
A desolate, abandoned planet with a grey, scarred landscape. Aballon was once home to a Duncan Heavy Industries facility that specialized in experimental projects, before a terrible accident destroyed the facility and wrecked havoc on the rest of the planet's surface.
A planet covered in thick, dense jungle. Home to the matriarchal and powerful psionic aliens known as Species 001. However, deep within the earth of Castrovel are rich veins of a unique red stone that interferes with psionic powers; the Mind-Blank Gemstone. Castrovel is one of the two planets that can be seen from Golarion and is a popular subject in Golarion poetry and song.
The most populated planet in the sphere, Golarion is an earth-like planet home to a large population of different nations, races and people. Golarion is the homeworld of Grey-eye Deadtalker, Capo Octavious Thundertone, and Yorick Morack.
A harsh, red planet. Though the surface hasn't been officially explored, Akiton is one of the two planets that can be seen from Golarion and is a popular subject in Golarion poetry and song.