About: http://webisa.webdatacommons.org/52098487

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	here is what happens every second of every night: Billions of photons -- those quantum particles" of light you might remember from physics class -- depart from earthbound light sources and shoot in all directions, including into the sky.
http://www.w3.org/ns/prov#wasQuotedFrom	washingtonpost.com