heh, why if i just turn on mental ray it works fine and if you render with mayas native it just wont display?
It would have saved me time back then when i was trying the earth scene(cmon, i dont think theres someone that hasnt tried it at least once)but why it wont work on scanline?

Heres a quick&dirty example of what i meant with the atmosphere going thiker near the ground(just a volume fog in a spherre)