<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEzLzExLzI3Lzc0L2lzb24uYWQ0ZTcuanBnCnAJdGh1bWIJMTIwMHg2MjcjCmUJanBn/e3776ac6/14e/ison.jpg>
<http://mashable.com/2013/11/27/comet-ison-thanksgiving/>