The social network has more than doubled the people on its messaging service since April.
Comments follow ex-Soviet Union declaring the world is on the 'brink' of another Cold War
Ruling is a new setback to BP's effort to curb costs from April 2010 oil disaster.
Paul Merson has revealed that Arsene Wenger begged him to stay with Arsenal before letting him move to Middlesbrough.
David Moyes returns to managerial duties for first time since being sacked by Manchester United in April.
Arsene Wenger will be handed a £20m bounty to strengthen Arsenal's defence in the January transfer window.
Scientists demonstrate technique using temperature control to improve efficiency of organic solar cells.
Northern governors in Nigeria urge President Goodluck Jonathan to declare all-out war against Islamists.
Gamma ray eruptions from centre of IC 310 Radio Galaxy in Perseus constellation suggest they originate from beyond a black hole's event horizon.
Indian flapshell turtle survives after fisherman's hook lodged in its throat was removed in Mumbai.
CNN to suspend broadcasting in Russia "in light of recent changes in Russian media legislation."
7 scientists were imprisoned for failing to predict L'Aquila earthquake in 2009 in which 309 died
Hull MP Alan Johnson has denied that he will challenge Ed Miliband for leadership of the Labour party.
Tech worker proposed by arranging the 99 iPhones into a heart shape and holding a bouquet of flowers.
UK not seeking another Cold War with Russia, but I will confront Putin says PM
Media reports say the gas is hydrogen sulphide that can be highly toxic and smells like rotten eggs.
The defending champion begins defence with 6-1 6-1 win
Eddie Graham's crime was "biggest historical child sex abuse case to come out of the UK's armed forces"
Pistorius might not qualify for home detention as tagging devices cannot be fitted on false limbs.
Two Israelis have been killed in knife attacks in Tel Aviv and the occupied West Bank.
Animal rights group Peta are demanding the Discovery Channel's Eaten Alive show, which claims it will show a man being eaten alive by an anaconda, be taken off air.
'Dancing Jesus' Pirates Kane Robinson and Richard Graham imprisoned for involvement in file-sharing
Study compares brains of long-term cannabis users with non-users.
Remains of two babies from 11,000 years ago discovered in central Alaska.
People are more likely to believe in gods when living in difficult environments.
The four-time Olympic champion says increased punishments remain the primary deterrent for athletes
Prime Minister is facing a political rebellion after he has denied MPs the chance to vote on the controversial European Arrest Warrant (EAW) measures.
Dalia Lamkus, 25, stabbed to death by Mahar al-Hashmalud, 30, near Alon Shvut, West Bank.
iOS exploit Masque Attack could allow attackers steal highly personal information from iPhones and iPads
Mental health experts to investigate designer's mental health after band cancelled tour dates