<http://schema.org/image>
<http://pop.h-cdn.co/assets/cm/15/05/54cb003862675_-_black-hole-galaxy-1112-mdn.jpg>
<http://www.popularmechanics.com/space/deep-space/a8462/found-a-supermassive-black-hole-that-dominates-its-galaxy-14793081/>