<http://schema.org/about>
"While most of us focus on the summer sun, it\u2019s the summer nights that are slated for some serious excitement this season."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/photos/7-stargazing-events-not-to-miss-this-spring-and-summer/dark-and-beautiful>