Front-runner Donald Trump and former Florida Governor Jeb Bush disagree sharply over foreign policy in the latest Republican presidential debate.
The death of one of the most conservative members of the US Supreme Court, Justice Antonin Scalia, sparks a battle for its control.
A Turkish assault on positions claimed by Kurdish fighters in northern Syria continues into a second day.
Are the US firebrands really as revolutionary as pundits say?
Doctor cycles round the world and gives it a clean bill of health
Animals that can detect cancers and smell out seizures
Hip Hop dance moves, other trends of the week
The chefs who baked the world's best loaf of bread
Indian man who is messiah to abandoned patients
Follow live text and Radio 5 live commentary as England run riot with their fifth try in Rome.