About: http://webisa.webdatacommons.org/46564169

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	It is hard to notice dark matter because it only interacts with regular matter through gravity for the most part and gravity is the weakest of forces.
http://www.w3.org/ns/prov#wasQuotedFrom	fieldofscience.com