» Fri May 27, 2011 6:33 pm
If they were on the moon, they'd be dead.
The two moons Masser and Secunda were defined as dead, lifeless planes incapable of supporting life even if life was brought to them.
From the UESPWiki (slightly paraphrased)
As such Secunda and Masser, which exists as a separate planes, have long since perished.
Secunda's death which has led mortals to perceive it as having both texture and limited size, as well as imperfections of color, all of which are the results of its decay from its former investiture of pure white.
Masser's death which has led mortals to perceive it as having both texture and limited size, as well as a reddish hue, all of which are the results of its decay from its former investiture of pure white.