@floridaman29: Kami most likely recreated the moon. Or the supreme kai since its there job to restore balance.
Well if that's true it fixes the plot hole of how the moon came back but there's something else wrong with the Rosh feat, how do you go from wall busting (Pilaf Saga) to moon busting (Jacki Chun Roshi) back down to wall or building busting (Red Ribbon Army Saga)? It seems like if Roshi had that much ki power he'd be able to destroy the Piccolos easily since King Piccolo was like city busting and Jr was Island busting. It would make Roshi comparable to Piccolo in the Saiyan Saga and that's the part that bothers me