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Crossrail: Tunnelling under London

How 26 miles of precision engineered tunnels are created through London's erratic geology

• 26 mins

The Story of SARS, Part One

Meet the medical staff who fought to contain the spread of this pandemic

• 26 mins

The Story of SARS, Part Two

Kevin Fong explores the personal and medical impact of SARS ten years on

• 26 mins

CERN and Science in Africa

The impact of the search for the Higgs boson on science teaching in Africa

• 26 mins

Raising Allosaurus

Can scientists bring extinct animals back from the dead?

• 26 mins

E-cigarettes

Do e-cigarettes really help smokers quit and are they safe?

• 26 mins

Deep Down Inside

How deep brain stimulation is treating Parkinson's and depression

• 26 mins

Noel Sharkey

Professor Noel Sharkey on the strengths and limititations of robots and AI

• 26 mins

The Future of Navigation

How robust is GPS and what are the consequences of the system's weaknesses?

• 26 mins

Alan Watson

Professor Alan Watson has spent 40 years trying to unravel the mysteries of cosmic rays

• 26 mins

Fracking for Shale Gas

What does fracking involve and what impact does it have on the environment?

• 26 mins

01/10/2013 GMT

Explorations in the world of science.

• 26 mins

Ashes to Ashes

Can ash trees be saved from the deadly ash dieback fungus?

• 26 mins

Ashes to Ashes

Could an emerald coloured beetle wipe out ash trees in Europe?

• 26 mins

Russell Foster

Professor of circadian neuroscience Russell Foster on how light controls our wellbeing

• 26 mins

Joanna Haigh

The professor who studies the sun and the impact of its radiation on the Earth's climate

• 26 mins

Mike Benton

Jim al-Khalili discusses digging up dinosaurs in remote places with Professor Mike Benton

• 26 mins

Jenny Graves

Prof Jenny Graves on the evolution of sex genes from fauna to the male Y chromosome

• 26 mins

Nirvana by Numbers

Did the number zero come out of religious culture in ancient India?

• 26 mins

Gut Microbiota

The important relationship between microbes that live in our gut and our health

• 26 mins

The Power of the Unconscious

The crucial role of our unconscious, and how scientists are harnessing its powers

• 26 mins

Self-Healing Materials

The new materials that can self-mend, from concrete cracks to car paint scratches

• 26 mins

The Return to Mawson's Antarctica - Part One

Join polar scientists on an expedition to part of Antarctica last explored 100 years ago

• 26 mins

The Return to Mawson's Antarctica - Part Two

Could changes in the water underneath the ice have consequences for the world's oceans?

• 26 mins

The Return to Mawson's Antarctica - Part Three

Penguins, seals and a stranded vessel - join the Australasian Antarctic Expedition 2013

• 26 mins

The Return To Mawson's Antarctica - Part Four

The mission to rescue the Australian Antarctic Expedition trapped in ice for 10 days

• 26 mins

Geoengineering

Can putting chemicals in the stratosphere to block the sun stop global warming?

• 26 mins

Chronotypes

Why are some people 'early birds' while others are 'night owls'?

• 26 mins

Fixing Nitrogen

What are alternatives to the process that takes nitrogen from the air to make fertilizer?

• 26 mins

Saving the Oceans - Part One

Tackling the problems of population and rising seas for the Pacific islands of Kirabati

• 26 mins