I was wondering how others dealt with the Outer Space in their fantasy settings. Do you assume that the Outer Space is just like our real world; ie. without oxygen and very deadly. Or, do you take a more fantastic approach and have something like the Spelljammer setting where, not only is the Outer Space breathable*, but the whole scientific idea of stars and gallaxies has been reworked. In Spelljammer you have planets floating in a Crystal Sphere and the "stars" are painted on the inside of it. Outside of the Crystal Sphere you have the Phlogiston, a strange substance that Space Travellers (Spelljammers) can sail across to access other Crystal Spheres (which contain other campaign settings). The Space Craft of Spelljammer are powered by magical Spelljammers (usually a throne of sorts) which leach a spellcaster's memorised spells to power the ships propultion and gravity-defying maneuvers.
Anyway, this is just one take on a fantasy Outer Space. How do you deal with yours?
*Spelljammer Space is not breathable, as such. All objects have an "atmosphere" around them but this atmosphere can be depleted if it is not renewed. Therefore, a stranded PC floating in space would eventually suffocate. So, I guess, Spelljammer Space is a vacuum like our real world Space. (I haven't read the material in a while.)
Anyway, this is just one take on a fantasy Outer Space. How do you deal with yours?
*Spelljammer Space is not breathable, as such. All objects have an "atmosphere" around them but this atmosphere can be depleted if it is not renewed. Therefore, a stranded PC floating in space would eventually suffocate. So, I guess, Spelljammer Space is a vacuum like our real world Space. (I haven't read the material in a while.)