About: http://webisa.webdatacommons.org/401217967

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	There is simply no such thing as absolute certainty regarding exactly where an asteroid will be ten years from now.
http://www.w3.org/ns/prov#wasQuotedFrom	clarkplanetarium.org