About: http://webisa.webdatacommons.org/31161409

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	Mars is a smaller gravitational well than Earth (smaller target) and the orbit is much larger.
http://www.w3.org/ns/prov#wasQuotedFrom	marsroverblog.com