Sezon 37
Bölümler
1 Darwin's Darkest Hour 6 Eki 2009 
2 Hubble's Amazing Rescue 13 Eki 2009 
3 Lizard Kings 20 Eki 2009 
4 Becoming Human: First Steps 3 Kas 2009 
5 Becoming Human: Birth of Humanity 10 Kas 2009 
6 Becoming Human: Last Human Standing 17 Kas 2009 
7 What Are Dreams? 24 Kas 2009 
8 What Darwin Never Knew 29 Ara 2009 
9 Killer Subs in Pearl Harbor 5 Oca 2010 
10 Building Pharaoh's Ship 12 Oca 2010 
11 Riddles of the Sphinx 19 Oca 2010 
12 Ghosts of Machu Picchu 2 Şub 2010 
13 Extreme Cave Diving 9 Şub 2010 
14 The Pluto Files 2 Mar 2010 
15 Hunting the Edge of Space: The Mystery of the Milky Way 6 Nis 2010 
16 Hunting the Edge of Space: The Ever Expanding Universe 13 Nis 2010 
17 Mind Over Money 27 Nis 2010 
18 Mt. St. Helens Back From the Dead 4 May 2010