ZkinandBonez said:
Crazy thought, but could Starkiller base actually be a super-weapon hidden inside an entire planet?
In this shot from the trailer it looks like the ground is opening up. And on the poster we see a Death Star type of super-weapon that looks like a snowy planet with a slit/crevice in the middle.
As previously discussed, yes. It's more than a possibility - it's confirmed.