2 Results
2 Results
Voyage to the Galapagos

Alan Alda follows in Charles Darwin's footsteps, meeting the animals and birds that inspired Darwin's theory of evolution. Alda joins scientists who witness the daily struggle for survival that has shaped the Galapagos I...

The dark side of the universe

New discoveries about dark matter and dark energy have astronomers wondering if ours is but one of an infinity of universes.