June 3, 2010 at 8:16 PM ETHere's more must-see video from the people who turned Carl Sagan into a songster from beyond the grave. This time the Red Planet is the theme, and the Mars Society's Robert Zubrin is the lead vocalist. I never thought of Zubrin's voice as being musical, but he sounds pretty good. And when you have Sagan as well as musician/physicist Brian Cox and astrobiologist Penny Boston as your backup singers, how can you go wrong? "Mars is a world of wonders!"