1) Let's say you had a Dwemer spaceship, could you physically travel upwards towards the moons Secunda and Masser and land on them?

2)Could you also travel to the corpses of the other Divines, like Julianos, or Stendarr? (they are, after all, depicted as planets in the Orrery)

3)I've read about the "sunbirds of Alinor" trying to fly to the stars to reach Aetherius, could you also fly into the void of Oblivion and physically reach a Daedric Realm?

4) How does the border between Mundus and Oblivion work? Oblivion surrounds Mundus, but where is the "line" between them?

And please, keep answers as short and simple as possible. I want to hear what the lore masters have to say, but I do not seek to achieve the same level of complete knowledge myself