The international community has united to condemn North Korea's underground test of a large nuclear device.
Justin McCurry, in Tokyo, says the bomb was comparable to the one dropped on Hiroshima in 1945.
Politicians from all sides of the Commons have been calling for institutional reform following the scandal over MPs' expenses. Political correspondent Allegra Stratton rounds up who is saying what.
Maev Kennedy reports on the rediscovery of a 400,000 year old flint axe whose original discover helped challenge creationist theory.
At the Hay-on-Wye literary festival, the BBC's business editor, Robert Peston, speaks to the Guardian's Stephen Moss.
And the founder of Island records, Chris Blackwell, celebrates the pioneering company's 50th birthday.
