9/10 GH Hardy, whose work inspired the millions of codes that help to keep the internet safe.
BBC Radio 4
Jon Stewart visits the Deepwater Horizon rig site to meet scientists studying the spill.
BBC World Service
1/2 India and China will dominate the 21st century. Will the Asian giants co-operate or clash?
1/4 Richard Dawkins decodes the discoveries and mysteries of the human genome sequence.
8/10 Marcus du Sautoy introduces the man whose mathematical insight gave rise to chaos theory.
Investigating the plight of foreign workers in the UK working in domestic servitude.
7/10 Prof Marcus du Sautoy introduces Georg Cantor and his theory of transfinite numbers.
12/40 Including a report from India on efforts to save the long-billed vulture.
2/4 Ben Goldacre and Dave Gorman discuss the notion of trust in science.
6/10 The pioneering 19th-century mathematicians who helped Albert Einstein with his maths.