About: http://webisa.webdatacommons.org/410273545

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	Only the dense cores of the planets, composed of iron and other heavy elements, would have survived this extreme episode.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com