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The parasite-eating fish turns its "cleaning stations" into reef safe havens, not only for itself, but for other species too

A flexible water-filled cylinder that produces electricity as it is hit by waves is very efficient and offers benefits over other sea-energy devices

Clothing that can reveal exactly which of a person's muscles are active provides detailed feedback to sportsmen and women

As early as the end of July 2008, NASA plans to test solar sail technology in orbit with a tiny spacecraft called NanoSail-D

Electronic eyes give sight to the blind, while functioning penises are grown in the lab.

Archaeology is set to become more precise by using imaging software to get objective measurements of artefacts like stone axes (full text available to subscribers)

Data from the Messenger probe suggests Mercury has a molten core that is cooling and causing the whole planet to contract

An extremely rare alignment between Earth and a pair of dense stars called pulsars reveals how bodies wobble in the presence of gravity

Infant mice that produce less serotonin are more likely to die soon after birth – the finding may lead to ways to predict the deadly condition

Fears that meltwater could increase the speed at which glaciers flow into the sea, rapidly destroying the ice sheet, may be unfounded

Two studies find ways to improve the health of mice, but fail to find any life-extending effect with either the chemical or a key ageing protein

A weapon that can project sounds directly into people's heads causes pain and incapacitation, and could be built inside a year

A meteorite that hit the town of Carancas last year may not have fragmented in the atmosphere because it was unusually tough

Will you miss your dog when it's gone? Willing to fork out on a clone? Then biotech entrepreneur

The location records routinely stored by in-car GPS units are a treasure trove of personal data, police investigators say

Distributing or downloading copyrighted material will become a criminal offence if a new G8 treaty comes into force (full text available to subscribers)

A portable brain scanner may one day monitor astronauts for signs of brain injury or stress – but space crews might oppose its use

A portable brain scanner may one day monitor astronauts for signs of brain injury or stress – but space crews might oppose its use

A simulation of processes deep in the Earth shows how an insulating effect may help drive the formation of supercontinents

A simulation of processes deep in the Earth shows how land masses may help drive the cycles of plate tectonics