About: http://webisa.webdatacommons.org/69578993

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	If I remember right, the answer was that these are sulfate salts, and the effect is much smaller than for the sort of salts we are used to thinking about.--Greg
http://www.w3.org/ns/prov#wasQuotedFrom	unmannedspaceflight.com