Where are exos made from? I need a specific place.

Of all the questions you ask that one. I know almost everything about exo's. But from my knowledge no one knows there exact origin. We know they are golden age. But not the original programing they had. I would say Venus but that isn't right. And I can't remember where the other science center was. It was an odd one. So. I fail. -.-

The answer is the Deep Stone Crypt Exos are born/created here...