Spelljammer PF1e
4-6-125
Space, the final frontier, well except for Phlogoston between the Spheres, well, then there are the other Spheres, they are new frontiers, and each is full of planets, and asteroids, and murderous spider creatures. Not to mention the brain sucking, tentacled, Illithids, and the shiploads of Beholders.
Space, your final frontier, somewhere, out there, where no one can hear you scream, well, at least outside your air bubble.
My personal take on the D&D second edition campaign setting Spelljammer. Much of this is based upon material published originally by TSR and items I have found online. I don't claim any of this is original and rely heavily on other people's work. I have been converting and continuing a campaign I originally ran in the 1990s for Pathfinder 1e.