Cosmic Carl

[robertm]

Dr. SETI's "Cosmic Carl" is an excellent folk tribute to the late great Sagan:
http://www.skeptic.com/junior_skeptic/mixtape2009/downloads/Dr_SETI_Cosmic_Carl.mp3

Here's another good one, Tom Lehrer's "The Elements Song": http://www.privatehand.com/flash/elements.html

What's your favourite song with a science theme?