BBC World Service - Discovery

Top Quark

Have scientists in Chicago really found a dozen examples of "top quark"?

Could a computer ever learn to appreciate Louis Armstrong?

Could human sperm be genetically altered?

How long ago did languages evolve?

Four new species of bush babies are discovered in Africa - but could there be many more?

What makes a face attractive?

A Roman amphitheatre and Saxon remains are discovered in the heart of London

Exploring synaesthesia - a world of salty vision and purple odours

Special report from annual meeting of American Association for Advancement of Science

The latest research in gene therapy for heart disease and cystic fibrosis