<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/768x516/54cabb4fab542_-_private_space_05_1210-xl-84813050.jpg>
<http://www.popularmechanics.com/space/g464/the-year-in-spaceflight-2010/>