Pope Francis holds a historic first meeting with Patriarch Kirill, head of the Russian Orthodox Church, in Cuba.

A new app that turns a smartphone into a mobile seismometer is being rolled out by California scientists.

Oil prices surged as much as 12% on Friday after fresh suggestions that Opec nations were set to cut oil production.

Cambridge scientists have detected a number of drugs which could help protect against Alzheimer's disease, acting like statins for the brain.

Teacher shortages mean support staff are having to pick up work normally done by qualified teachers, suggests research by a union.

A whistle-blowing helpline for employees in England to raise concerns about child protection failures - run by the NSPCC with £500,000 of government funding - is to be launched.

Rebel groups in Syria tell the BBC they will not stop fighting, casting doubt on an accord by world powers to bring about a cessation of hostilities.

Five United Nations peacekeepers are killed in a mortar attack by Ansar Dine jihadists on one of their bases in northern Mali, officials say.