I believe you're correct The thing that we both see I do feel is indeed a satellite. My first assumption was that it was a bird but the lack of motion in the "wings" makes one think that it might indeed be a satellite. Good eyes sir. this throws some of the ideas of terraforming off tilt...

I don't know. How does decomposition work out in space? If the Moon does not have an atmosphere, then theoretically speaking, nothing would naturally deteriorate, or if it does, it's at a much slower rate. In the link provided, the writer discusses how things would decompose partially, and then become freeze-dried. However, clearly in the Moon trailer, the person inside the astronaut suit is a skeleton. So, there are two things here that could be happening: 1. The Moon has been terraformed to have some semblance of an atmosphere in order to sustain living bacteria to help with the decomposition process. 2. Byf Theory - The Hive are consuming [b]all[/b] resources available and utilizing them to further their own goals and agendas.

In the Moon section of Law of the Jungle you can clearly see wind blowing the hunter's cloak and dust as they stand on the ridge. Not sure if that was purely for cinematic purposes or means the introduction of an atmosphere to Luna but there it is.

You bring up a good point. I cannot think of a time when a Bungie cinematic trailer contradicted what was in the final game. Good catch!

I totally think that the traveller altered the planets fundamentally in terms of gravity, atmosphere and so on, but I am not sure it was terraforming in the sense of making them habitable by humans.