PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The event was also studied by several satellites and space probes, including the Hubble Space Telescope, the Chandra X-ray Observatory, and Rosetta, the later of which was heading toward a rendezvous with another comet and provided valuable observations of 9P/Tempel 1 from a different observing angle.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cometography.com