I just saw a sci-fi movie called Timeline, in which some scientists try to create a teleportation machine but whatever they put in it disappears and re-appears later. So they put in a camera and when it comes back it has pictures of a forest. Then they point the camera up and take a picture of the night sky, at which point they realize that it is a place in France called Castlegard on April 4th 1356 or something like that (the point is it's an exact date). And here is where my question arises. I can understand being able to deduce the date by looking at the night sky, but can we really deduce the point on the earth from which the picture of the sky is taken which such accuracy that you can say it's this or that village? <br />Was that science or fiction?