The fourth episode of Cosmos: A Spacetime Odyssey, “A Sky Full of Ghosts,” airs tonight on Fox.In “A Sky Full of Ghosts,” Neil deGrasse Tyson sets off on the Ship of the Imagination to ...

The third episode of Neil deGrasse Tyson's rebooted "Cosmos" series, titled "Lost City of Life," takes viewers on a journey through space and time to witness the tenacity and creativity of life on ...

The second episode of the brand new season 3 of "Cosmos: Possible Worlds" takes us, as the show so often does, from ancient times on Earth through to the very edge of the galaxy.