<http://schema.org/about>
"Astronomers have discovered a potential \"rogue\" alien planet wandering alone just 100 light-years from Earth, suggesting that such starless worlds may be extrem"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/orphan-alien-planet-spotted-100-light-years-away>