Ruins?

[DirectorTsaarx]

Here's an interesting one for all y'all:

Here it is, turn 204 (!) and I found a planet with ruins on it (in a dead-end system that used to be AI territory). Now, the Last four or five ruins I've found gave no advancements at all (fortunately, the first 4 or 5 ruins I found DID give me techs, three of the unique techs and then some random techs). Anyway, I colonized the world with the ruins, expecting to get nothing for my trouble except another colony in a new system. Imagine my surprise when I got:

Cloaking level 3
Minerals Extraction level 6
Mines level 5

(obviously, I'd researched the previous levels of each one).