On Mars
Is there a Shuttle phase in the final round?
The round in which the end is triggered still has its Shuttle phase, but the one extra round after it does not. So you cannot travel by ship in the final round; use the Landing Pod or the Aerial Elevator. If the end is triggered by an effect in the Shuttle phase, the check happens at the end of the Colonization phase, so another full round and the final round follow.