About: http://webisa.webdatacommons.org/92344591

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	Let students know that since the 1960s, we have sent spacecraft to explore Mars and other places in our solar system that are most easily reached.
http://www.w3.org/ns/prov#wasQuotedFrom	discoveryeducation.com