About: http://webisa.webdatacommons.org/48634150

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	Jan. 28, 1986: The space shuttle Challenger explodes 73 seconds after launch, killing all seven astronauts aboard, including Christa McAuliffe, intended to be the first teacher in space.
http://www.w3.org/ns/prov#wasQuotedFrom	metafilter.com