<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfc9b9ddf50_-_latestfromspitzer_470_0310-de.jpg>
<http://www.popularmechanics.com/space/telescopes/a5720/4349969/>