The Universe Season 7 Episode 4 -

Airdate: 2012-May-20

Episode summary:

There really are ice worlds like Hoth from Star Wars. In this episode, we explore icy planets and moons, discover the role of cold in the Universe, and learn about the importance of ice to the development of habitable worlds.

About The Universe series:

From the planets to the stars and out to the edge of the unknown, history and science collide in History’s popular series “The Universe...Show more >