<http://schema.org/description>
"The U.S. space program's deep space comet-hunting mission ended after nine years and the transmission of 500,000 images of celestial bodies, NASA said Friday."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/2013/09/20/NASAs-Deep-Impact-comet-hunting-mission-ends/UPI-70361379712858/?pvn=1>