Medicine: A first generation of fullerene-based drugs is on the way.
A 3-D medical imaging system helps surgeons perform less invasive, safer operations.
Why scientists are busily developing new vaccines-and why they are years away from stockpiling what we may need.
DNA segments passed down from common ancestors can be surprisingly large-which could accelerate the hunt for common disorders.
Drugs of the near future will be microdevices that search out and destroy germs without the side effects of conventional therapies.