The negative advantage

Brain drain

Who's that?

Dolphins can tell who it is when they see themselves in a mirror

Earthling or not?

Hard on the teeth

Amanda, the detective

A device to trace neutrinos

Planets of Orion hunted down

The constellation is made up of planet-like bodies

Supercheap superconductors

Superconductor is made from a cheap chemical

Martian research

Life on Mars may have gone undetected by earlier probes

Harder than diamonds

Unhygienic solution

Antibacterial ingredients in soap may be encouraging the growth of bacteria

Diamonds for microchips

Microchips are made using artificial diamond

Green emissions from Venus

Global crash!

Defying logic

The mystery behind runaway stars

SOS: Darwin's finches

Nestling finches in Galapagos Islands threatened by larvae of parasitic flies

No more sweet sixteen

Earth is 30 million years older than originally estimated by researchers

Unholy ritual

Antarctic ozone hole again starts expanding

Drag-net

New copy protection system to trace culprits circulating films purchased online

Multiplication vexes

Exposure to environmental estrogens reduces male fertility

Fallible Detective

Fingerprint identification may not be completely reliable

A basic discovery

Scientists find the 22nd amino acid

A solution to the solvent

Researchers develop solvent-free chemistry -- a boon for environment

Hottest of them all

The first three months of the year 2002 were the warmest ever recorded

Better than the best

Osmium metal is even harder than diamond