'Yes, I do play the guitar, but very badly. And I wouldn't inflict my singing on anybody'

Thirty years after the virus was identified, the French scientist behind its discovery is looking to the future. Steve Connor meets Françoise Barré-Sinoussi

Simple technique tchooses the best embryo

News could lead to tissue-transplant operations for range of debilitating disorders, also including MS and spinal cord injuries

Discovery could help in the development of techniques for finding extra-terrestrial life-forms living within underground pockets of water on the moons of Jupiter

Around 10 million people each year are currently affected by coastal flooding and this number is likely to triple as more and more people migrate to coastal regions.

Study concludes there is 1 in 20 chance that existing defences would be unable to cope with extreme storm surge

Depressed people live in parallel time zone, scientists find

There will be a dramatic global decline in the number of animal and plant species this century if the world continues to procrastinate over measures to cut carbon dioxide emissions to limit climate change, a study has found.

The molecular biologist has revolutionised treatment of breast cancer. His next challenge? The lungs. Steve Connor meets Alan Ashworth