If you waved at Saturn recently
https://twitter.com/search?q=%23WaveAtSaturn&src=hash
you'll appreciate this http://www.youtube.com/watch?v=4PN5JJDh78I
It includes a recording of Carl Sagan and quite simply, it's the best video ever IMO
No Eds it's not off topic as every ancient site could be said to be included in it, sort of. ;)