How do you get to your new ship if you went on a diffrent island in poptrpica and you go back to astro island?

To get to your new ship in Poptropia after visiting a different island, return to Astro Island and head to the spaceport. Once there, interact with the launchpad to access your ship. You can then board your new ship and continue your adventures in the game. If needed, ensure you have completed any necessary tasks or missions related to the ship before boarding.