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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	According to the article, funding is the biggest obstacle for such a mission. (Image Credit: NASA)More Info > (The Washington Post)
http://www.w3.org/ns/prov#wasQuotedFrom	aiaa.org