I hope the author eventually gets around to adding all the modded planets. There's way more than 6. Metal and Stars is only one of the many extras. Some (but not all) other modded planets (that I know of) include: Lignumis, Outer Rim, Paracelsin, Dea Dia, Arig (Planetaris Unbounded), Pelagos, Igrys, Corrundum, Rubia, Omnia, SLP - Dyson Sphere Reworked, Shchierbin, Vesta, and Shattered Planet. There's also a couple mods that aren't planets that add science, like Nuclear Science and Schall Alien Loot. I imagine that's a lot of work for a single person, though.
