COSMOS113_07
COSMOS: A SPACETIME ODYSSEY: Host Neil deGrasse Tyson introduces us to astronomer Vera Rubin, who explained how we only know four percent of what the cosmos actually contains in the all-new “Unafraid of The Dark” Season Finale episode of COSMOS: A SPACETIME ODYSSEY airing Sunday, June 8 (9:00-10:00 PM ET/PT) on FOX and Monday, June 9 (9:00-10:00 PM ET/PT) on Nat Geo.