<http://schema.org/about>
"Swooshing and swirling green northern lights can be seen glimmering in a deep purple sky in the videos, which were shot over a 13-day stretch."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/northern-lights-dance-in-new-time-lapse-videos>