In this final episode we complete our journey, travelling back from the March equinox to the end of June. Kate Humble is in the Arctic at a place where spring arrives with a bang, whilst Helen Czerski chases a tornado to show how the earth's angle of tilt creates the most extreme weather on earth.

In this second episode we travel from January to the March equinox. Kate Humble gets closer to the Sun than she has ever been before, whilst Helen Czerski visits a place that gets some of the biggest and fastest snowstorms on Earth.

This episode looks at the influence of the sun and reveals how its seasonal journey affects the lives of all creatures.

Film telling the story of the greatest physicists of the 20th century and the discoveries they made, told in their own words. Men and women who transformed our understanding of the universe, from unlocking the secrets of the atom to solving the mysteries of the cosmos.

This is the epic story of the stars, and how discovering their tale has transformed our own understanding of the universe.

In the last month of the space shuttle programme, Kevin Fong is granted extraordinary access to the astronauts and ground crew as they prepare for their final mission.

Professor Hawking considers one of the most important mysteries facing humankind: the possibility of intelligent alien life.

The inside story of the James Webb Space Telescope, following the Nasa team building the £8 billion device and the scientists taking its first image of distant stars and galaxies.

A new age of space exploration, and exploitation, is dawning. But surprisingly, some of the boldest efforts at putting humans into space are now those of private companies started by a handful of maverick billionaire businessmen.

Series in which mathematician Marcus du Sautoy explores the stories behind some of the most familiar scientific diagrams

When Polish priest and astronomer Nicolaus Copernicus developed his extraordinary theory of a sun-centred universe 500 years ago, he was flying in the face of both science and religion. Mankind had believed for thousands of years that the earth was at the centre of the cosmos, and to disagree was to risk derision and accusations of heresy.

Prof Jim Al-Khalili tackles the biggest subject of all, the universe, through a series of critical observations and experiments that revolutionised our understanding of our world.

In this second part, Professor Jim Al-Khalili carries us into the distant future to try to discover how the universe will end - with a bang or a whimper?

The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees, the astronomer royal, has taken up the search for extra-terrestrials. Looking for aliens is no longer science fiction - it is a question that's engaging some of the greatest minds in science.

The attempt to send and land astronauts on Mars risks billions of dollars and the lives of those brave enough to attempt it. Is the possible benefit really worth the risk? And is it really achievable?

Professor Brian Cox takes a look through nearly 50 years of BBC archive at the story of man's relationship with the Moon.

Updated documentary series using computer animations, archive footage and interviews to examine our current knowledge and contact with the bodies of our solar system.

Professor Brian Cox explores the dramatic lives of the eight majestic planets/worlds that make up our solar system.

The rocky planets Mercury, Venus, Earth, and Mars were born at the same time from the same material - yet have lived radically different lives. What immense forces are at play?

Documentary series tracing our exploration of the solar system. This programme investigates geological activity, looking at the discovery of frozen lava plains on Venus, and a volcano on Mars that would dwarf Mount Everest. Scientists postulated that despite these intriguing surface features, the planets were effectively dead. However, pictures from the moons of Jupiter and Neptune would soon contradict this theory.

Documentary series tracing our exploration of the solar system. This programme looks at Voyager's expedition to the vast gas planets of Jupiter, Saturn, Uranus and Neptune.

Documentary series tracing the exploration of our solar system. This programme investigates our growing understanding of the origins of the moon.

Documentary series tracing the exploration of our solar system. A look at the quest to understand the sun, from the simple etchings of the astronomer Galileo to the discoveries of the latest solar probes. The latest scientific images reveal that the sun is a gigantic nuclear generator, a swirling mass of superheated gases that travel along powerful magnetic field lines.

This programme describes the investigation of weather systems found throughout the solar system. Scientists have discovered sulphuric acid rain and metallic snow on Venus, while space probes have revealed the arid surface and frozen seas of Mars and the mysteries of the gas giant, Saturn.

The documentary series about the solar system examines how our understanding of the evolution of life on earth has changed, and explores the evidence for life on other planets. In 1976, two robotic probes suggested that the surface of Mars was dead. But the latest research reveals that this may not be the case and that it is possible that life on earth may have evolved from Mars.

Documentary series tracing the exploration of our solar system. This programme looks at the fate of the solar system and explores the new planetary systems that are being found around nearby stars.

In the final episode, Professor Brian Cox journeys to the remotest part of the solar system, a place that the most mysterious planets call home.

Professor Brian Cox reveals the history of Saturn. Saturn began life as a strange planet of rock and ice and in time transformed into a gas giant, ring-less and similar looking to its rival, Jupiter.

Brian Cox continues his exploration of the solar system with a visit to a planet that dwarfs all the others: Jupiter. Its size gives it a great power that it has used to manipulate the other planets.

Professor Brian Cox continues his tour of the solar system revealing that it was once home to not one, but two blue planets.