Philip Ball reveals the real Cyrano de Bergerac - forget the big nosed fictional character - and his links to 17th Century space flight.

Journeys to the New World in the seventeenth century were voyages of trade - and ultimately of colonisation. What those travellers wanted were minerals, spices, gold, rare and precious objects that could fetch a fortune in the Old World. Today, the profit motive has returned to space travel. Efforts to develop spacecraft and to send people into space are increasingly being conducted not just by government agencies but by private companies, in search again of land and minerals. The use of resources on the moon and the planets is in principle governed by the Outer Space Treaty. Philip discusses the control of exploitation of space with Patricia Lewis of ICAN, the International Campaign to Abolish Nuclear Weapons.

What do you do when you've described the nature of the universe?

In the late 1920s Einstein was working on a grand unified theory of the universe, having given us E=mc2, space-time and the fourth dimension. He was also working on a fridge.

Perhaps motivated by a story in the Berlin newspapers about a family who died when toxic fumes leaked from their state-of the-art refrigerator, Einstein teamed up with another physicist Leo Szilard and designed a new, safer refrigerating technology. And so it was that in 1930, the man who had once famously worked in the patent office in Bern was granted a patent of his own. Number: 1, 781, 541. Title: refrigeration.

Phillip Ball explores this little known period of Einstein's life to try and find out why he turned his extraordinary mind to making fridges safer.

Despite considerable commercial interest in the patent, Einstein's fridge didn't get built in his lifetime.The Great Depression forced AEG and others to close down their refrigeration research. But in 2008 a team of British scientists decided to give it a go.Their verdict : Einstein's fridge doesn't work.

Producer: Anna Buckley

In the spring of 1667 Samuel Pepys queued repeatedly with crowds of Londoners and waited for hours just to catch a glimpse of aristocrat writer and thinker Margaret Cavendish.

Twice he was frustrated and couldn't spot her, but eventually she made a grand visit to meet the Fellows of the newly formed Royal Society. She was the first woman ever to visit.

Pepys watched as they received her with gritted teeth and fake smiles.

They politely showed her air pumps, magnets and microscopes, and she politely professed her amazement, then left in her grand carriage.

Naomi Alderman asks what it was it about this celebrity poet, playwright, author, and thinker that so fascinated and yet also infuriated these men of the Restoration elite?

Part of the answer strikes right at the core of what we now call the scientific method.

Producer: Alex Mansfield

In 1864 a strange type of rock fell from the sky above Orgueil in rural France. Shocked and frightened locals collected pieces of the peculiar, peaty blob from the surrounding fields, and passed them on to museums and scientists.

At that time, a debate had been raging over the origin of life; Could life possibly form from mere chemicals? Or did it need some strange unidentified vital substance?

Into this debate fell the Orgueil meteorite, and because it seemed remarkably similar to loamy soil, some wondered whether it may hint at the existence of extra-terrestrial life.

The great Pasteur allegedly investigated, but disappointingly found no such thing. Nevertheless, the mere possibility prompted later ideas that the origin of life on earth indeed lay elsewhere in the universe, ideas that were greeted with varying degrees of skepticism over ensuing decades.

As Phil Ball narrates, given how much was at stake, and how bitterly scientists argued on either side, the most remarkable thing about the story is the extraordinary secret the meteorite kept to itself until exactly 100 years later.

Producer: Alex Mansfield

Naomi Alderman presents an alternate history of electricity. This is not a story of power stations, motors and wires. It’s a story of how the electric eel and its cousin the torpedo fish, led to the invention of the first battery; and how, in time, the shocking properties of these slippery creatures gave birth to modern neuroscience. Our fascination with electric fish and their ability to deliver an almighty shock - enough to kill a horse - goes back to ancient times. And when Alessandro Volta invented the first battery in 1800, the electric eel was a vital source of inspiration. In inventing the battery, Volta claimed to have disproved the idea of ‘animal electricity’, but 200 years later, scientists studying our brains revealed that it’s thanks to the electricity in our nerve cells that we are able to move, think and feel. So, it seems, an idea that was pushed out of science and into fiction, when Mary Shelley invented Frankenstein, is now alive and well and delivering insight once again into what it means to be alive.

Producer: Anna Buckley

Philip Ball dives into the magical world of Cornelis Drebbel , inventor of the world's first submarine in 1621.

How did the crew of this remarkable vessel manage to breathe underwater, completely cut off from the surface, 150 years before oxygen was officially discovered?

King James I of England and thousands of his subjects lined the banks of the River Thames in London to watch the first demonstration. The strangest boat they had ever seen sank beneath the waves and stayed there for three hours.

Did Drebbel know how to make oxygen? Historian Andrew Szydlow reveals that Drebbel did have secret knowledge of how to keep the air fresh.

In his day, Drebbel was a pioneer of exploring uninhabitable places. Today's equivalent is to make oxygen on the Moon and as scientists grapple with this ultimate challenge, Monica Grady explains their work is being used under the waves where Drebbel began.

Producer: Erika Wright.