Philip Ball tells the story of Arthur Eddington's confirmation of general relativity.
Eddington's Eclipse and Einstein's Celebrity
Lucretius, Sheep and Atoms
Naomi Alderman's story is of Lucretius, sheep and atoms
Philip Ball's tale is of Kepler's Snowflakes, a New Year's gift and of crystallography.
Lady Mary Montagu's Smallpox Experiment
Naomi Alderman on how Lady Mary Montagu used her own child to prove smallpox inoculation.
Ibn al-Haytham and How We See
Philip Ball's story is of Ibn al-Haytham, the first scientist, and how we see.
Germaine Greer - White Beech: The Rainforest Years
Germaine Greer is taken to see an abandoned dairy farm on the Gold Coast.
Using science to tackle plastic pollution
Plastic pollution and efforts by Welsh scientists to tackle the problem.
Zimbabwe Internet Back Up
The internet has gone back up in Zimbabwe following a court ruling against the government
No-deal Brexit and the Environment, high-tech slurry, photorespiratory shortcut, cannabis farming
Friends of the Earth claim a no-deal Brexit will leave the environment vulnerable.
The latest news about food, farming and the countryside from BBC Radio 4.