<http://schema.org/about>
"NASA has pushed back the launch of a $2.5 billion Mars rover by one day, to Saturday, in order to replace a suspect battery on the rover's rocket."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/stories/nasa-delays-new-mars-rover-launch-by-a-day>