Cosmos
Add To Playlist

Add to playlist

Sign in or Register to add this to a playlist
close

Episode Synopsis

The expanding universe is humanity's monumental discovery. Beginning with something infinitesimally small, the universe has become something majestically large. How could this happen? What could this mean?

Episode Segments

1. Alan H. Guth
2. Paul J. Steinhardt
3. Saul Perlmutter
4. George F. R. Ellis
5. Andrei Linde

What does an Expanding Universe Mean?

Discussion