- Appropriate Technology
Steal buildings and plans from a planet. "Appropriate" is just bureaucrat speak for stealing something.
- Planetary Command Center
"Houses the central government for your empire. This is your "flag in the ground" that lets everyone know you've staked your claim to a planet. It provides some basic resources and and storage for those resources both of which increase with the level of this building. The planetary command also provides some critical reports on your planetary activities such as total resource production and total resource storage for the planet it's constructed on." in-game description
Plans are consumable items that let you construct or upgrade buildings without resource costs.
- Space Station Lab
Space Station labs are four-part facilities that produce plans for space station modules.