The prime minister Gordon Brown is to repay more than £12,000 in expenses for cleaning, gardening and maintenance at his second home. Our chief political correspondent Nicholas Watt reports.
Dr Tony Ford from the Institute of Cancer Research at the University of London explains how scientists have established that cancer cells can spread from a pregnant woman to her foetus.
The Venezuelan president, Hugo Chávez, is displaying increasingly authoritarian tendencies, according to his political opponents. Our Latin American correspondent Rory Carroll reports from Caracas.
British users of Freecycle - a website that allows people to give items away to people who want them, rather than throwing them away - have formed a breakaway group. Sam Jones explains why.
And arts correspondent Mark Brown describes the latest installation in Tate Modern's Turbine Hall - this time by Polish artist Miroslaw Balka.
