At the last meeting in November, where Andrew gave a very interesting talk on Saturn, the topic of the Pale Blue Dot was raised.
This refers to a photograph taken by Voyager 1 on the 14th February, 1990 from beyond the planet Neptune, a distance of 6 billion km (3.7 billion miles). On the photo the Earth was less than 1 pixel.
In case anyone is interested the passage that Carl Sagan wrote in 1994 to go with the picture is on YouTube (HERE). I have also put a copy on the download page (HERE)