<http://schema.org/description>
"U.S. astronomers say they've discovered a new class of supernovae that doesn't fit in the two previously known varieties of the cosmic phenomenon."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/Science_News/2013/03/26/New-class-of-supernova-identified/UPI-46181364325796/?pvn=1>