The existence of a new world was recently discovered by some great explorers. They've formed the Monolith Expedition to start mass transport to and colonization of this new world, but they need your help to get there! They're currently working to build a ship, and they need your help collecting materials to build the ship and food to feed their workers. The Expedition is also collecting items that will be useful later in their voyage as well.
You can start your quest to help the Monolith Expedition by visiting the portal hub and speaking to the Monolith Scout. From there, he will guide you to the Expedition base, where you'll speak to the Supply Manager to start collecting items.