A field trial of LED lights in social housing says the new technology can deliver huge energy savings, reduce costs and makes residents feel safer.

Sierra Leone hopes to overcome brutal image to attract bird tourists

Japan's prime minister says the Fukushima nuclear plant is now in a "cold shutdown condition", nine months after the earthquake and tsunami.

Uninformed individuals are vital for achieving a democratic consensus, according to a study in the journal Science.

Russia's space agency says its unsuccessful Mars probe, Phobos-Grunt, will probably fall back to Earth early next month.