A piece of Friday's Deedlecast, Cosmology, this single is a DJDeedle remix/mashup of two youtube creations, a moving and haunting tribute to Sagan and his work, "Cosmos," and an ode to science and man's place in the cosmos, featuring Sagan and his colleague scientists, Bill Nye, Stephen Hawking, Richard Feynman, and Neil DeGrasse Tyson. The beauty of the song is not the voices and scraps of sound, but the way they are put together.