Hank talks about a shiny element that has fascinated humans for millenia.

Like SciShow on Facebook: http://www.facebook.com/scishow
Follow SciShow on Twitter: http://www.twitter.com/scishow

For more:
http://ircamera.as.arizona.edu/NatSci102/NatSci102/lectures/supernovae.htm
http://www.valdosta.edu/~cbarnbau/astro_demos/stellar_evol/evol_3.html