Is there life out there? Either on other worlds, deep space, or even deep in our oceans that we haven't encountered yet?

Molecules have structures that are every bit as real in the mind of the chemists who create them, as are the edifices of brick, steel and concrete...

Chris Freeman, the founder and first director of the Science Policy Research Unit introduces Bernal, the father of the protein crystallography techniques which enabled the double helix structure of DNA to be unravelled.

The idea of time travel makes great science fiction, but can it really be done?

In 1985 an experiment, designed to unravel the carbon chemistry in Red Giant Stars…

Radioastronomical observations of our galaxy have revealed hordes of molecules in the interstellar medium. Extremely fast reactions result in the high abundance of complex organic compounds in the space between the stars.

The concept of creativity from the point of view of how original ideas develop is explored with the aid of recent advances in computer modelling programming strategies.

We can now expect to live longer than ever before, and if we get ill, we expect to be made better! However new threats continue to emerge.

The controlled ways that electricity and magnetism can stimulate the body are demonstrated and how the resulting responses can aid diagnosis discussed.

Since the time of Faraday lines of force in space have been "observed" by sprinkling iron filings around magnet.

Feynman diagrams and the intricacies of particle interaction.

How green are you prepared to be? Burning fossil fuel is choking our planet with carbon dioxide, but would you stop using petrol or allow wind farms to be built in your back yard?

We are being watched. A bewildering array of sensors are remotely observing everyhting on earth, from crops in Africa to the car parked outside your house.

What are reflection and transmission, and how do they work?

John Maynard Smith, one of our most eminent evolutionary biologists and scientific communicators originally trained as an engineer and spent the war years designing aircraft.

How long can we live, and how long do we want to live? Why do we change as we get old, and is there anything we can do to stop it?

There have been many arguments for and against GM Foods, but the question still stands - are they potential saviours of mankind or a disaster waiting to happen?

The Nobel Laureate Professor Sir John Cornforth, overcomes his deafness to present an elegant account of how he, and his wife Rita, disentangled a historically important puzzle in steroid synthesis.

An elegantly simple optical diffraction demonstration with an inexpensive laser pointer is used to show the way in which x-rays can reveal the structure of crystals…

Satellite, ship survey and computer modelling studies of the workings of the marine environment are used explore present fish supplies worldwide.

Helen Sharman, the UK's first astronaut, gives a vibrant account of her personal experience of life in space using models and film…

Nuclear magnetic resonance imaging (MRI) provides a powerful means of not only distinguishing between different types of tissue but also of identifying whether the tissues are normal or diseased.

What is nanotechnology? Will it change the world, as some have promised? What's all this about molecular machines in our blood?

Carbon nanotubes, some 1000 times smaller than conventional carbon fibers, have tensile strengths 100x that of steel and conduct electricity like metals.

What does it mean, and where is it all leading?