Tier 2 Rocket Schematic
The Tier 2 Rocket Schematic can be found in Tier 1 treasure chests, found after completing the Moon Dungeon.
Inside a NASA Workbench find the 'Add Schematic' page. Insert the schematic and click 'Add'. This will permanently unlock the Tier 2 Rocket crafting in any NASA Workbench for this player, and will use up the schematic.
If you are playing in a Space Race team, in Galacticraft 4 unlocking a schematic in this way will unlock it for all current members of your team.
In Galacticraft 4 your surplus schematics can be hung on the wall for decoration of your engineering areas - like a painting.