About: http://webisa.webdatacommons.org/61833844

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	The reionization history of the Universe, including the question of whether stars or quasars are sources of ionizing ultraviolet radiation, is an active area of current research in cosmology.
http://www.w3.org/ns/prov#wasQuotedFrom	astrosociety.org