1/2 The engineers and astronomers approach the biggest milestone in their 20-year project.
BBC Radio 4
Fran Abrams investigates the corruption that lay behind the Mubarak regime.
3/5 Lesley Garrett and yachtsman Geoff Holt on the inspiring song, The Impossible Dream.
1/2 Stephanie Flanders sets out on the search for growth in Britain's economy.
2/2 Mark Vernon asks whether we have lost our ability to doubt well.
The UK's Development Secretary argues giving to the poor is in our national interests
BBC World Service
The role of religion in the uprisings in the Arab world and in the emerging new order
The port city of Takoradi is being transformed by Ghana's new oil industry
2/2 From Italy to India, David Goldblatt examines how Formula One is changing
Claudia Hammond asks how much we can trust fingerprint evidence.