On March 10, 2013, NASA, the Space Telescope Science Institute, Northrop Grumman and 529 space fans set a new Guinness World Record for the world's largest astronomy lesson at the South by Southwest ... more 
On March 10, 2013, NASA, the Space Telescope Science Institute, Northrop Grumman and 529 space fans set a new Guinness World Record for the world's largest astronomy lesson at the South by Southwest (SXSW) festival in Austin, Texas. less 
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SPACE.com | Photo By Guinness World Records
Mon, Mar 18, 2013 12:24 PM EDT