<http://schema.org/caption>
"Two astrophysicists from Michigan Technological University are using Twitter to search for time travelers (Image: &lt;a href=\"http://www.shutterstock.com/pic.mhtml?id=143826514&amp;src=id\" target=\"_blank\"&gt;Shutterstock&lt;/a&gt;)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://newatlas.com/time-travel-search-twitter/30282/>