'Lost towns' discovered in Amazon

New walk from vexed space station
International Space Station astronauts try to resolve the latest of a series of glitches that have plagued their mission.

Sea eagles could be reintroduced
Conservationists plan to bring the sea eagle, the UK's largest bird of prey, back to the skies above England.

IBM to build brain-like computers
A collaboration in the US is aiming to create artificial brain circuits that mimic the structure and workings of neurons.

Nothing lost in space - this time
Astronauts have completed further repairs at the International Space Station without mishap.

Hairspray linked to birth defect
Boys born to women exposed to hairspray in the workplace may have a higher risk of being born with a genital defect.