Season 4 episodes2009-08-18

Season 4

From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and time.

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Episodes

Season 4

Episode 1

Death Stars

45m

Episode 2

The Day the Moon Was Gone

45m

Episode 3

It Fell From Space

45m

Episode 4

Biggest Blasts

45m

Episode 5

The Hunt for Ringed Planets

45m

Season 4

Season 4

Death Stars

The Day the Moon Was Gone

It Fell From Space

Biggest Blasts

The Hunt for Ringed Planets

10 Ways to Destroy the Earth

The Search for Cosmic Clusters

Space Wars

Liquid Universe

Pulsars & Quasars

Science Fiction, Science Fact

Extreme Energy