S1.E1 ∙ Pathway Sat, Mar 03, 2012 Following the Earth's orbit from July to the December solstice. 7.9 /10
S1.E2 ∙ Spin Sat, Mar 10, 2012 Kate Humble gets closer to the Sun than she has ever been before. 7.8 /10
S1.E3 ∙ Tilt Sat, Mar 17, 2012 Helen Czerski shows how the earth's angle of tilt creates the most extreme weather. 8.1 /10