About: http://webisa.webdatacommons.org/212725019

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	From the star's Doppler shift, the team determined that Kepler 78b's mass is 1.7 times that of Earth???a measurement that suggests the planet is made mostly of rock and iron.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org