S04 Episode 1
Death Stars
A look at death stars in their final stage of life until their explosion into supernovae, with the occasional gamma ray burst.
44 mins · Tue, 18 Aug 2009
S04 Episode 2
The Day the Moon Was Gone
An examination of how life on Earth would be like without the moon, including just four hours of sunlight and large hurricanes that would last for months.
44 mins · Tue, 25 Aug 2009
S04 Episode 3
It Fell From Space
Scientists learn more about the cosmos from objects that land on Earth, including asteroids, meteors, comets, and space debris.
44 mins · Tue, 1 Sep 2009
S04 Episode 4
Biggest Blasts
A closer look at ten of the largest blasts to occur in the universe, including the Big Bang and gamma rays.
45 mins · Tue, 8 Sep 2009
S04 Episode 5
The Hunt for Ringed Planets
A look at rings around planets and their links to the origins of the Earth's solar system and distant galaxies.
45 mins · Tue, 15 Sep 2009
S04 Episode 6
10 Ways to Destroy the Earth
Experts share 10 ways that the Earth could be destroyed, including switching off gravity and getting swallowed into a microscopic black hole.
45 mins · Tue, 22 Sep 2009
S04 Episode 7
The Search for Cosmic Clusters
An exploration of two kinds of star clusters in the galaxy that provide scientists with more knowledge about the birth and formation of stars.
45 mins · Tue, 29 Sep 2009
S04 Episode 8
Space Wars
A look at how future weapons might work and their potential effectiveness if outer space becomes militarised.
45 mins · Tue, 6 Oct 2009
S04 Episode 9
Liquid Universe
A closer look at various liquids of the universe including lakes of methane, scalding iron rain, and oceans of electrified hydrogen metal.
45 mins · Tue, 20 Oct 2009
S04 Episode 10
Pulsars & Quasars
A look at fast spinning neutron stars, known as pulsars, as well as galaxies with black holes, known as quasars.
45 mins · Tue, 27 Oct 2009
S04 Episode 11
Science Fiction. Science Fact
Researchers attempt to transform science fiction concepts such as wormholes and lasers into real-life applications.
45 mins · Tue, 3 Nov 2009
S04 Episode 12
Extreme Energy
A look at how large amounts of energy maintain the universe's equilibrium while creation amazing cosmic events and stellar displays.
45 mins · Tue, 10 Nov 2009
