What could we do, what could we discover? Could we fly to Secunda or the other moon which I cannot recall the name of? Could we fly through Magnus and into Aetherius? This talk of the sun and stars being holes into Aetherius is only really plausible and unbreakable as long as the people on Tamriel don't advance technologically. So, in theory, could we just fly up there and have a look around?

What would it be like on the moons? Would there be any life or some hidden Godly secrets?

http://www.imperial-library.info/content/tiber-septim%E2%80%99s-sword-meeting-cyrus-restless

http://www.uesp.net/wiki/Lore:Pocket_Guide_to_the_Empire,_3rd_Edition/Arena_Supermundus

http://www.imperial-library.info/content/elder-scrolls-legend-battlespire-storyline

Reman had mananauts that traveled throughout Oblivion, trying to reach Aetherius; they at the very least visited the planets (and only quit trying when the cost in magicka became too great for the reward). The Dwemer had knowledge enough of the planets to create their orreries. The Battlespire is basically a space station, to break it down to the simplest term possible. Space travel is nothing new. It is because of space travel that we understand the nature of the universe as well as we do; the myths that are told about Creation are not simply idiot bards making stuff up to explain the stars away, but instead are the result of actual research.

There are entirely too many threads that assume that lore is just primitive song-and-dance written by bards and priests meant to explain natural phenomena away. It's pretty clear that, when characters in the games talk about this stuff, they know what they're talking about.

Moons? Probably rather smelly what with being Lorkhans corpse and all

Wait 'til you see my Mothship.

I've heard the Ur-tower referred to as a spaceship before. Maybe we'll get to fly it one of these days

See my sig? Click the Aureate bit.

Feel free to visit the IRC channel, too.

The current thinking (in the Masser Project, and for all I know the TES Lore community on the whole) is that travelling from the surface of Nirn through the Void and to another planetary body doesn't actually have much to do with the physical traversal of distance so much as a transformation from one dimension to another.

So first let's get some basics out of the way.

Nirn, Masser, Secunda, and every other "planet" in the Mundian "galaxy" are not great big physical balls of stuff separated by great distances, but rather planes of existence, of dimensions. The difference between Nirn and Masser is similar to the difference between Nirn and the Deadlands, Mehrunes Dagon's plane of Oblivion.

This means that every plane of existence in the Aurbis is technically infinite in size and can actually be thought to occupy the same physical four-dimensional space. Moving from the Deadlands to Nirn can actually involve little to no physical movement, but rather the "re-attunement" of magical energies.

But this is so difficult for a mortal on Nirn to perceive that their minds instead interpret that they choose instead to create an illusion of physical distance.

When Imperial Mothships leave Masser or Secunda and return to Nirn they can be observed growing in physical size. This may be because there are perceptive differences in the physical size of existence on the two planes, and a re-alignment must be made upon arrival from one to the other.

An amount of magical energy is required in order to make these dimensional transformations, and the more "removed" the plane, the more magic is required. Since Nirn is so closely related, in the dimensional sense, to Masser and Secunda (as the moons are the corpse of Lorkhan, who first conceived of the Mundus concept), the two moons appear closer than the other planes, like Mara and Kynareth.

If this post is at all confusing, and I'm sure it is, I'd recommend http://www.imperial-library.info/~crodo/teaser/cosmologyfaq.html, which is much better written.