<http://schema.org/alternativeHeadline>
"The recent lunar eclipse has everyone skygazing. If you have a newfound interest in the stars, these apps will help you spot, name and learn more about celestial bodies."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/green-tech/gadgets-electronics/stories/10-free-apps-for-astronomy-fans>