What it is: http://en.wikipedia.org/wiki/KEO
In 2006, a sattellite called KEO is going to be launched as a time capsule, that will return to earth in 50,000 years. And every person on earth is allowed to submit a message that future generations can read:http://www.keo.org/uk/pages/message.php
I think this is very cool. We'll all be long dead, but its kind of neat that you can talk to the future of humanity.
Mantrid, you truly scare me sometimes.