[Fyron]

There are 3 types of technologies, racial techs, unique ruins techs, and normal techs. To get racial techs, you have to take the required racial ability at the start of the game. Unique ruins techs can only be discovered by colonizing a ruins planet.

Ruins planets can actually have 2 different types of technology on them. Some ruins will have a unique tech. Other ruins will give you from 1 to 3 normal, researchable technologies. For example, you could get Space Yards I. If you colonize a normal ruins planet, you might have already researched the technology that the planet would have given you. This results in you receiving no technology from colonizing the ruins planet.