About: http://webisa.webdatacommons.org/151517862

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	JOE PALCA, BYLINE: 25 years ago, if you asked astronomers if there were planets around stars other than our sun, they would probably say well, maybe, but they would admit they were just speculating.
http://www.w3.org/ns/prov#wasQuotedFrom	upr.org