<http://schema.org/alternativeHeadline>
"2013 will bring several spectacular skywatching events, including seeing several planets at once, meteor showers, and several eclipses."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/13-must-see-stargazing-events-in-2013>