Season 2012 aired between 17 Jan 2012 and 17 Oct 2012, 16 episodes.
Episodes
E01
Playing God
17 Jan 2012
E02
The Truth About Exercise
28 Feb 2012
E03
Solar Storms: The Threat to Planet Earth
06 Mar 2012
E04
Out of Control?
13 Mar 2012
E05
The Truth about Fat
20 Mar 2012
E06
Global Weirding
27 Mar 2012
E07
The Hunt for AI
03 Apr 2012
E08
Defeating Cancer
10 Apr 2012
E09
The Truth About Looking Young
23 Jul 2012
E10
Mission to Mars
30 Jul 2012
E11
Eat, Fast and Live Longer
06 Aug 2012
E12
How Big Is the Universe?
27 Aug 2012
E13
How Small is the Universe?
03 Sep 2012
E14
Defeating the Superbugs
10 Sep 2012
E15
Immortal? A Horizon Guide to Ageing
17 Jul 2012
E16
The Final Frontier? A Horizon Guide to the Universe
17 Oct 2012