The central storytelling conceit is to present the entire history of the Universe as a one-year “cosmic calendar.” This helps put billions of years in a manageable context, beginning with the Big Bang ...

Take a trip beyond the stars with the documentary series "Cosmos: A Spacetime Odyssey." Each episode explores the vastness of the universe in search for answers to some of mankind's deepest questions.

Last night's episode of Cosmos: A Spacetime Odyssey looked at the tiniest elements of our universe, exploring plant and animal cells and the role they play in our lives. Host Neil deGrasse Tyson took ...