<http://schema.org/about>
"While the general shape and layout of Earth has been known for centuries, images of our planetary home still hold the power to mesmerize even today -- but chances are, you've never seen it quite like this."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/nasa-releases-amazingly-hi-def-images-earth.html>