The following is a wonderful and fitting tribute to Carl Sagan created by John Boswell over at ColorPulse Music.   It was done in the form of a music video using exerpts from Carls 13 part television series aired in the late seventies; Cosmos: A Personal Voyage.   It also features Stephen Hawking and I have to admit it is really well done.. 

I felt it needed to be posted and passed on.  I recommend watching it all the way through several times..  Enjoy..

YouTube: http://www.youtube.com/watch?v=zSgiXGELjbc ColorPulse:  http://colorpulsemusic.com/youtube.html