Astronomer Carl Sagan leads us on an engaging guided tour of the various elements and cosmological theories of the universe.

Previous Episode

Previous Episodes

Episode NameAirdateTrailer
1x13: Who Speaks for Earth?Dec 21, 1980
1x12: Encyclopedia GalacticaDec 14, 1980
1x11: The Persistence of MemoryDec 7, 1980
View full episode list »