The Solana galaxy was by far the largest galaxy Ratchet explored, with over more than 60 known planets and locations. This was where Ratchet began his adventures when he and Clank saved countless planets from being completely destroyed by Chairman Drek.

During Ratchet & Clank: Up Your Arsenal, the Solana Galaxy was ravaged by the Bio-Bliterator, thanks to Dr Nefarious and many of the inhabitants were turned into robots. In Ratchet Deadlocked, Ratchet, Clank and Big Al were taken to the darkest part of the Solana Galaxy known as the Shadow Sector.

In Size Matters, they explored new planets that weren't seen in the previous games as well as Pokitaru, a planet from the first game. Known cities included Gorda City of Oltanis, Blackwater City of Rilgar, the Technomite City of Challax, Capital City on Marcadia (which was the capital of the galaxy), and the largest of them all was Metropolis of Kerwan.

Solana had a diversity of different kinds of planets which all had their own unique environment which included swamps, jungles, cities, deserts, ice caps, oceans, tropical places, forests, mountains, tundras, volcanic regions, polluted regions, dark regions, snowy regions, and even junkyards.

The Galaxy was governed by the Galactic President, who resided in Capital City on Marcadia. The President was seemingly elected by the public. There existed also the Galactic Fleet and an organization known as the Galactic Rangers, who worked for the Galactic Government. In Ratchet & Clank: Going Commando, the Galactic Court ordered Captain Qwark to pay 6 billion bolts to customers suffering from his Personal Hygienators. The Planets in Solana Galaxy appeared to be autonomous; some were ruled by a planetary chairman (Novalis, the Blarg) and some planets with major cities were governed by mayors and city governments (Kerwan, Rilgar). However, many planets were also owned by large companies such as Gadgetron, who was based on Kalebo III. The bolt foundry of the galaxy was located on Fort Sprocket. Not all planets were densly populated such as Kerwan, Marcadia, Oltanis, and other planets with large cities, for example planets such as Hoven, Quartu, Umbris, Veldin, and Aridia, along with most of the Shadow sector were lawless and remote and also a bit more dangerous for that matter.

Planet Metalis was the junk yard of the Galaxy where old robots and broken ships were often dumped.

On parts of some planets, it seemed as it was always nightime. Outpost X11 on Aridia is one notable example.