<http://schema.org/description>
"Human beings have only gone as far as the moon and back -- and that&amp;#039;s certainly an accomplishment in and of itself. But what other methods do scientists use to learn about our galaxy and beyond? What have we achieved so far in our exploration of the final frontier?"^^<http://www.w3.org/2001/XMLSchema#string>
<http://science.howstuffworks.com/space-exploration-pictures.htm>