Season 39 aired between 07 Sep 2011 and 25 Apr 2012, 19 episodes.
Episodes
E01
Engineering Ground Zero
07 Sep 2011
E02
Surviving the Tsunami
28 Sep 2011
E03
Finding Life Beyond Earth: Are We Alone?
19 Oct 2011
E04
Iceman Murder Mystery
26 Oct 2011
E05
The Fabric of the Cosmos: What is Space?
02 Nov 2011
E06
The Fabric of the Cosmos: The Illusion of Time
09 Nov 2011
E07
The Fabric of the Cosmos: Quantum Leap
16 Nov 2011
E08
The Fabric of the Cosmos: Universe or Multiverse?
23 Nov 2011
E09
Deadliest Volcanoes
04 Jan 2012
E10
Bombing Hitler's Dams
11 Jan 2012
E11
3D Spies of WWII
18 Jan 2012
E12
Mystery of a Masterpiece
25 Jan 2012
E13
Ice Age Death Trap
01 Feb 2012
E14
Separating Twins
08 Feb 2012
E15
Cracking Your Genetic Code
28 Mar 2012
E16
Hunting the Elements
04 Apr 2012
E17
Deadliest Tornadoes
11 Apr 2012
E18
Why Ships Sink
18 Apr 2012
E19
Secrets of the Sun
25 Apr 2012