So, I know there has been discussion/debate about why the Enterprise is being constructed on Earth (as suggested by the trailer), when it was supposed to be built at Utopia Planitia on Mars (or, was that only the Enterprise D, I can't remember now), but, has it been actually confirmed that what we are seeing in the trailer is Earth? I noticed that the scene with Kirk driving up to the Enterprise is actually shot on the basaltic sandur plains of Iceland. I've done quite a bit of field research there and recognize the terrain, it is very unique. If you're familiar with planetary science the Icelandic terrain is considered a fairly close analog to the basaltic terrain of Mars. Could we be seeing a modestly terraformed Mars surface in the trailer? Interesting that they shot that scene in Iceland, either way.