Orbit - Earth's Extraordinary Journey

From July to the December solstice, Earth experiences spectacular weather and its largest tides. The planet's orbit helps Helen Czerski jump out of a plane, and Kate Humble briefly becomes the fastest driver.

Earth's orbit from January to the March equinox allows Kate Humble to get closer to the sun than she has ever been before. Helen Czerski visits a place that gets some of the biggest and fastest snowstorms on the planet.

From the March equinox to the end of June, Kate Humble is in the Arctic at a place where spring arrives with a bang. Helen Czerski chases a tornado to show how the planet's angle of tilt creates the most extreme weather on Earth.