Stem cell research.

In the first item on the programme, Geoff Watts investigates the pioneering stem cell research being undertaken in China, where injured brains are being repaired. It indicates the start of a breakthrough in treating nerve damage and means China is set to become a world leader in the field of stem cell research. Can Britain keep up with the competition? The second item is on earthquakes. The third item is about safe zones in space, and the fnal item is about the human nose.