I have been poking around trying to find a good picture of the engraved gold plaque that was placed on the side of the Pioneer and Voyager space probes, which shows, among other things, the rough position of earth in relation to 14 pulsars (stars which pulse at a regular rate).
Eventually I found both a meduim sized and a large image of the plaque, but being finally able to see the image meant that I then had to figure out how to read binary so that I could make some sense of it.
