This video was first posted via a popular (now obsolete) Facebook science page called From Quarks To Quasars in November 2013. Watch all the 6 videos in this mini-series here:
   • From Quarks To Quasars  

Soundtrack: http://www.audiotool.com/track/pleasa...

Narration: Claudio Napoleoni (http://www.cnvoiceovers.ca/)

References:
http://www.news.harvard.edu/gazette/1...
http://plato.stanford.edu/entries/sou...