Kate Humble and Dr. Helen Czerski cover the January to March equinox; Kate gets closer to the sun than she has ever been before, while Helen visits a place that gets some of the biggest and fastest snowstorms on Earth.

Kate Humble and Dr. Helen Czerski follow the Earth's voyage around the sun for one complete orbit;, they travel from July to the December solstice, experiencing spectacular weather and the largest tides on Earth; to show how the Earth's orbit affects daily life, Helen jumps out of an airplane and Kate briefly becomes the fastest driver on the planet.

Physicist Brian Cox discusses various aspects of the universe, featuring a "wonder" related to each featured topic. Among the topics covered are the nature of time, relating humans to the life cycles of stars and the effect of gravity across the universe.

What is life? And how did it begin? Professor Brian Cox explores the globe to reveal how a few fundamental laws of science gave birth to the most complex, and unique, feature of the universe. In the five-part series, Cox -- a professor of physics at the University of Manchester in England -- travels from the Philippines to the U.S., Madagascar and Mexico to explore life through physics, and concludes that, far from demanding a mystical explanation, the emergence of life might be an inevitable consequence of the physical laws that govern the universe.