After last week's excitement (see our astronomy sister channel at http://www.youtube.com/DeepSkyVideos for more details), we turn our attention to types of supernova. Featuring Professor Mike Merrifield. Deep Sky Videos on last week's Type II can be found at: http://www.youtube.com/watch?v=_GEyAsaWB4k http://www.youtube.com/watch?v=x5zo5449wHU As usual, here is Mike explaining the Atlas of Creation on his shelf: http://www.youtube.com/watch?v=Dylv1EiMejI Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham Sixty Symbols videos by Brady Haran