Hollywood horror flicks have captivated us with alien blobs, but the slime slithering on our own planet is as beguiling. From microscopic machines to life on ocean floors, new research reveals how essential slime is to life on Earth, and possibly other worlds. Plus, will nano-built slime -- aka Gray Goo -- threaten us in the future?

Hollywood horror flicks have captivated us with alien blobs, but the slime slithering on our own planet is as beguiling. From microscopic machines to life on ocean floors, new research reveals how essential slime is to life on Earth, and possibly other worlds. Plus, will nano-built slime -- aka Gray Goo -- threaten us in the future?

http://dlc.sun.com/seti/podcast/AWA_09-03-16.mp3