Astronauts at the International Space Station complete the first of a series of spacewalks to carry out urgent repairs to the cooling system.

Dozens of shellfish nurseries in Scotland will be protected under new legislation that has come into force.

Australia is to send a surveillance plane to the Southern Ocean in a bid to stop conflict between Japanese whaling vessels and environmentalists.

A new reservoir of melted water lurking below the Greenland ice sheet may have big implications for sea level rise.