Horizon

Season 41, Episode 16

Episode Title: Saturn - Lord of the Rings

Air Date: 2004-10-21

Overview:

In 1610, Galileo used a new invention -- a simple telescope -- to look at Saturn. When he viewed the planet for the first time, he saw something strange. He thought he saw three stars together, a big one in the middle of two little stars. He knew they weren't really stars, but what were they?