Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up.

This is the story of an extraordinary scientific adventure - the attempt to control gravity. For centuries, the precise workings of gravity have confounded the greatest scientific minds - from Newton to Faraday and Einstein - and the idea of controlling gravity has been seen as little more than a fanciful dream. Yet in the mid 1990s, UK defence manufacturer BAE Systems began a ground-breaking project code-named Greenglow, which set about turning science fiction into reality.

The oceans define the earth. They are crucial to life and we used to think that they were unique to our blue planet. But we were wrong.

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?

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.

This episode reveals a strange and mysterious world - the ancient Egyptian afterlife. To them life was just a dress rehearsal for the perfect afterlife they were trying to reach. Joann clambers into rarely visited tombs, explores a treasure trove of long-buried objects and examines spectacular mummies to discover just why the Egyptians spent a fortune preparing for death - and what they hoped to find when they got there.

In the first part of the series, Joann explores how people lived during this time, from the tightly-packed houses and villages of the common people, to the clothes they wore and the food they ate. She discovers the ordinary Egyptians' love of poetry and their enthusiasm for interior design, as well as what it was like working in the most famous cemetery on Earth.

Documentary following homeowners and council tenants from a London council estate as they fight to save their homes and campaign against a planned multimillion-pound regeneration.

Pompeii: New Secrets Revealed with Mary Beard Documentary. With unparalleled access to Pompeii and featuring cutting-edge modern technology, Mary Beard guides us through this amazing slice of the ancient world.

Documentary about the French electronic music duo who created a unique artistic world around them by controlling every aspect of the music creation and hiding their identity.

Change was coming to America and the faultlines were no longer ignorable - cities were burning, Vietnam was exploding and disputes raged over equality and civil rights. The Black Panther Party for Self-Defense would, for a short time, put itself at the vanguard of a revolutionary culture that sought to drastically transform the system. This fascinating documentary tracks its rise and the painful lessons wrought when a movement derails.

As YouTube celebrates its tenth birthday, vloggers now sell out stadiums and have fanbases boy bands would kill for. Jim Chapman, himself a superstar vlogger with quarter of a billion views of his videos, takes us behind the scenes of the biggest vloggers on the planet.

Matt Frei enters the colourful and mad world of presidential hopeful Donald Trump, whose meteoric political rise comes amid one of the most controversial political campaigns America has ever seen

Professor Iain Stewart reveals the story behind the Scottish physicist who was Einstein's hero; James Clerk Maxwell. Maxwell's discoveries not only inspired Einstein, but they helped shape our modern world - allowing the development of radio, TV, mobile phones and much more.

A chance to look back at a classic Horizon special in which James Burke looks at space exploration and exploitation. Originally transmitted in 1984, James begins by looking at the Apollo XI moon landing, before moving on to future space plans for humankind.

The story of the most elegant and powerful theory in science, Albert Einstein's general relativity. It takes us inside the head of Einstein to witness how his idea evolved.

On the 15th December, Tim Peake will launch into space to be Britain's first astronaut on board the International Space Station. For the past two years, Tim has been filming a video diary for Horizon showing the risks, pressures and rigorous training required to launch into space. Horizon also talks exclusively to his wife and two children as they prepare to wave him goodbye on his voyage to space.

The Class of '92's first season in charge draws to a close, and all eyes turn to Salford. But will the gamble on their new venture pay off, and will Salford FC realise their dreams of promotion?

BBC One brings Class Of 92: Out Of Their League, a new 2x60 documentary series. The series captures the humour and drama, both on and off the pitch, as the ex-players start their first season in charge of Salford City FC – a club seven tiers down from the Premier League and normally run by local volunteers.

Is poetry the new rock 'n' roll - or is rock 'n' roll the new poetry? This documentary explores how the edges between performance poetry and popular music have become blurred - a radical cross-pollination that began 50 years ago when Allen Ginsberg stormed the stage of the Royal Albert Hall.

This new documentary tells the fascinating inside story of an archaeological investigation that has discovered the remains of an entirely new species of human ancestor, Homo naledi.The discovery grabbed headlines worldwide and is already re-writing the story of our origins and could transform the understanding of how modern humans evolved from ape-like creatures.

The surprising story of the hidden powerhouse behind the globalised world - the diesel engine, a 19th-century invention that has become indispensable to the 21st century.

Documentary which combines astonishing footage from Saigon in April 1975 with contemporary reflections from those who were there. During the chaotic final weeks of the Vietnam War, the North Vietnamese Army closes in on Saigon as the panicked South Vietnamese people desperately attempt to escape.

Hosted by Mark Radcliffe and recorded at the British Library, this year's John Peel lecture is delivered by legendary music guru and pioneer Brian Eno. The man behind some of the most memorable sounds in music history, and whose passion to innovate and experiment has kept him at the forefront of music and sound production, speaks about the ecology of culture.

Filmed over 5 years, A Syrian Love Story charts an incredible odyssey to political freedom. For Raghda and Amer, it is a journey of hope, dreams and despair: for the revolution, their homeland and each other.

Particle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking?

Forget the Big Bang. The real moment of creation was the moment of first light, the moment the first stars were born. Horizon tells the scientific version of the story of Genesis.

Rome was the world's first ancient megacity. At a time when few towns could number more than 10,000 inhabitants, more than a million lived in Rome. But in a world without modern technology, how on earth did the Romans do it?

In the opening episode of the series, Professor Andrew Wallace-Hadrill takes us on a journey across stunning locations in Greece and Italy to find out how Athens gave birth to the idea of a city run by free citizens 2,500 years ago. Every aspect of daily life from defence to waste disposal was controlled not by a king, but by the Athenians themselves.

Until very recently the whole idea of the multiverse was dismissed as fantasy. Horizon asks whether multiple universes exist and, if so, which one we are actually in.