Writers Arthur C. Clarke and Ray Bradbury, journalist Walter Sullivan, and scientists Carl Sagan and Bruce Murray during a Caltech symposium on the eve of Mariner 9's orbit around Mars on Nov 12, 1971
NASA Jet Propulsion Laboratory/CalTech
2012-06-07
<a rel="nofollow" class="external free" href="http://www.jpl.nasa.gov/video/index.cfm?id=1086">http://www.jpl.nasa.gov/video/index.cfm?id=1086</a>