Barack Obama says a framework agreement on Iran's nuclear programme could peacefully resolve "one of the greatest threats to our security".
The Queen is to attend a Westminster Abbey service next month, commemorating the 70th anniversary of Victory in Europe Day.
With the future of the health service a crucial election issue, five experts offer their prescriptions to improve public health in Britain.
As teachers' unions gather for their annual conferences, why has education retained such high levels of union membership?
A sailor who went missing in January has been rescued off the coast of North Carolina after apparently surviving on raw fish.
Natalia Antelava visits a children's centre for youngsters involved in the war in eastern Ukraine.
Hunting for chocolate Easter eggs has been a challenge for the ethical shopper but new EU laws make it easier for such customers.
People travelling by rail over Easter should "think twice" because of widespread engineering works, Transport Secretary Patrick McLoughlin says
Palestinians are celebrating after Israel's Supreme Court rejects a plan to build the West Bank barrier through a beauty spot near Bethlehem.
China's former security chief Zhou Yongkang is charged with bribery, abuse of power and the intentional disclosure of state secrets, state media report.
What the parties want to go viral after the leaders' debate
How different is capitalism from the 18th Century?
A US jury has awarded $150m (£101m) to the family of a four-year-old boy that died in a crash involving a Jeep Grand Cherokee in 2012.
Will Poldark revive the art of scything?
Astronomers witness a key stage in the birth of a very heavy star, using two radio telescope views of the process taken 18 years apart.
Biologists are calling on the public to report sightings of rabbits and hares as part of a conservation effort.
Tailor-made cancer vaccines that target unique genetic errors in a patient's tumour have been developed in the US.
Why a journey that usually takes five hours took 306 days
A Christian woman's 40-day experiment
Whose cat is a millionaire in its own right?