thought this was a good read this arvo, from NASA science ..
April 28, 2011: One day, years from now--or maybe billions of years, no one knows--aliens might be surprised to run across an old spaceship from Earth. Improbably far from home, the ancient probe is space cold, its nuclear power source spent long ago; an iconic white antenna points silently into the void, beaming no data to the species that made it. Yet this Voyager may speak to its finders....... an more at
http://science.nasa.gov/science-news...8apr_voyager2/