The Universe Season 4 Episode 9
Liquid Universe
On alien planets, they rain from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in pristine lakes of methane. They can cover entire planets in miles-deep oceans of electrified hydrogen metal. Or erupt on alien worlds through miles-high geysers. They churn in the interiors of dead stars and even our own planet. They're so rare in the universe, they almost don't exist, but these are the magical liquids of our Liquid Universe.
- 4 - 12Extreme EnergyNov. 10, 2009
- 4 - 11Science Fiction, Science FactNov. 03, 2009
- 4 - 10Pulsars & QuasarsOct. 27, 2009
- 4 - 9Liquid UniverseOct. 20, 2009
- 4 - 8Space WarsOct. 06, 2009
- 4 - 7The Search for Cosmic ClustersSep. 29, 2009
- 4 - 610 Ways to Destroy the EarthSep. 22, 2009
- 4 - 5The Hunt for Ringed PlanetsSep. 15, 2009
- 4 - 4Biggest BlastsSep. 08, 2009
- 4 - 3It Fell From SpaceSep. 01, 2009
- 4 - 2The Day the Moon Was GoneAug. 25, 2009
- 4 - 1Death StarsAug. 18, 2009