SGU question
Where did the communications Crystals come from? Perhaps I just wasn't paying attention but I don't remember seeing anything about them in a previous show. I remember them being mentioned on the first episode but don't remember where they came from. Interesting the way it works though. My brother who didn't know what was going on was baffled. Couldn't understand how the characters got on earth. The trick of having the person at the other end look like him, or her, was confusing. Meanwhile I guess I'll look around on the SGU web site for the answer.