User blog comment:Derrmann/Using the moon to show whether or not trailers were before the series?/@comment-10380701-20131126002545

Monty actually said it's just "phases and shit". So it's not falling apart. It looks like that and spins around like that, even though it looks like it's about to drift off into space.

Based on the phases, I'd say the Black and Yellow trailer took place the closest to RWBY episode 1.