Charles Darwin is an international celebrity, but Gregor Mendel holds the key to heredity.
Albert Einstein develops a theory of relativity with some help from his shaving mirror.
Scientist and broadcaster Kathy Sykes chooses the iconic physicist, Albert Einstein.
Professor Kathy Sykes nominates Albert Einstein.
Helen Grady profiles the prize-winning scientist Professor Sir Andre Geim.
The row that exploded between Eddington and Chandrasekhar over the death of stars.
Melvyn Bragg and guests discuss Gauss, one of the great mathematicians.
Professor Marcus du Sautoy argues that mathematics drives science.
Businessman and academic, Adair Turner looks at the life of Charles Darwin.
Businessman and academic Adair Turner talks about the life of Charles Darwin.
Neurobiologist Prof Colin Blakemore takes Wendy Robbins to his childhood home in Coventry.
Melvyn visits Darwin's home at Down House in Kent.
Darwin's early life in Shropshire and his three years at Cambridge.
How Charles Darwin used the plants in his garden to develop his theory of evolution.
Philip Ball tells the story of Arthur Eddington's confirmation of general relativity.
Einstein said the most joy in his life came from his violin. Brian Foster investigates.
Astrochemist Ewine van Dishoeck tells Jim Al-Khalili about the space between the stars.
Scientist Lord Robert May nominates the naturalist and botanist, Joseph Banks.
Melvyn Bragg and his guests discuss the work of French anthropologist Claude Levi-Strauss.
Melvyn Bragg and guests discuss Louis Pasteur, known as a founder of microbiology.
How naturalist Joseph Hooker globally acquired species to build up the first maps of flora
Melvyn Bragg and guests discuss the scientist Michael Faraday.
Naomi Alderman tells the story of Pavlov and his selectively drooling dogs.
How plants proved a new route to political power and the growth of Britain's Empire.
The story of Louis Pasteur's development of the anti-rabies vaccine in 1885.
Why did Darwin lose his faith?
Michael Berkeley is joined by Nobel Prize-winning physicist Professor Frank Wilczek.