Titan
 

Titan has weather
much like that on Earth.
The Galaxy's sole satellite
with an atmosphere.
Not bad to have an aura of its own
when it is dragged round incessantly
by another's
gravity. 

The weakest force
in nature known,
yet its long reach and universal application
shape our worlds. Encyclopaedia Britannica.
 
On Titan it rains  
methane. Burns a pale unstable flame.