The first of Nasa's Grail satellites goes into orbit around the Moon to map its gravity in unprecedented detail, revealing its internal structure.

President Obama signs into law a defence bill including tough new US sanctions against Iran, while expressing concerns about other provisions.

Thousands of revellers take to the streets across the UK to herald the new year with fireworks and parties.

A Swedish woman discovers her wedding ring on a carrot growing in her garden, 16 years after she lost it, says a newspaper.

North Korea calls on the country to defend the new leader, Kim Jong-un, to the death, in a New Year's message released by state media.

Giving up alcohol or going on a detox for one month is pointless, especially after the excesses of the festive season, says a liver charity.

Two men are badly injured in an explosion at a former colliery site in Nottinghamshire.

The government's pledge to cut net migration by 2015 is unlikely to be met, a think tank warns.