<https://secure.gravatar.com/avatar/5acd2881c0c39516856c3a9a99ea0e26?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://cosmosmagazine.com/space/jupiter-new-moons-discovered/>