Cosmos a Spacetime Odyssey Episode 4 "A Sky Full of Ghosts"

Cosmos a Spacetime Odyssey episode 4 “A Sky Full of Ghosts” airs Sunday, March 30 at 9:00 p.m. ET/PT on Fox. Episode Synopsis: Cosmos a Spacetime Odyssey Episode 4 “A Sky Full of Ghosts” – Neil deGrasse Tyson sets off on the Ship of the Imagination to explore how light, time and gravity alter our