Well, they sure are evolved forms of indigenous species from a planet

. oh, you wanna know how far I can go into useless details? There you go:
Mycoids homeworld ( beware, it's weird, as I said

):
Uriah Secondus:
-Giant gazeous planet
-Dead core, diameter 30000 Km in diameter
-Gazeous sphere: 120000 Km in diameter
-61 oceans ( to date, they seem to often merge and split )in suspension, trapped in the gaz layer. Gravity and a high revolution speed keeps them mid-air, taking the shape of gigantic drop-shaped water lenses.
- average temperature on sun side: +-50°C
- biomass: important ( mycoids and local vegetals/animals )
Uriah Secondus is the second planet of the Uriah 12 system
Uriah 12 ( star ):
Red giant
Uriah 12 ( system )
3 planets, 21 satelites, very heavy asteroid presence
Located in the External ( Perseus, North on galactic plane ) Arm of our galaxy.
Uriah Prime:
-Rock planet
-diameter: 31000 km
-Biomass: none
-average temperature: 800°C
Uriah Secondus:
-See first entry
Uriah Ters:
-Rocky planet
-Diameter: 17000Km
-Biomass: none
-Average temperature: -120°C
I have no data on atmosphere, coz I have no knowlegde in that.