During the moon mission, if you go to World's Grave with the room with the purplish banners, you can clip through the map by following these steps: 1.) Jump on the prongs on an obelisk on the right side near the door to the room. 2.) From there you can jump on a door-frame that's slightly to the right. 3.) From the frame you can jump to the purple banners on the right side. 4.) Jump to the banners on the left side. 5.) Go forward from the banners towards the large closed door, there should be a ledge where you can see gaps in the map. 6.) Jump through this and aim towards the staircase 7.) From here you can crouch under a barrier and if done right you will be outside the map looking into an inaccessible area. From here you can continue going left and find various ledges to jump on to explore further. Near the end of the areas I saw a golden chest through a wall. Keep in mind that as of now I've found no way to return to the moon proper. I will include videos just as soon as I figure out the easiest way to do so with ones taken from a phone. I figured Bungie and the esteemed members of the 7th Column would like to know this information, assuming it isn't known already. I rather enjoy exploring and finding things like this and hope it can remain in the game but regardless of action taken henceforth, thank you Bungie. <3