Cosmos: A SpaceTime Odyssey: Season 1, Episode 8 - ProjectFreeTV

1 - 8: Journeys in Space and Time

A voyage to see how star patterns change over millions of years is followed by a journey to the planets of other stars, and a look at the possibility of time travel. This takes us to Italy, where a young Albert Einstein first wondered what it would be like to ride on a beam of light.