Rocket Raccoon: Metaphors go over his head.
Drax the Destroyer: NOTHING goes over my head! My reflexes are too fast, I would catch it.
When the Dark Aster enters the atmosphere at the end of the film, its wings untwist as it descends, in most of the scenes afterwards and the hologram the ship's wings are still twisted, then later during the battle they untwist again.
The planet the orb is found on is called Morag. In the comics Morag is the first leader of the Kree, whose actions started the eon long Kree/Skrull war.