The United States, Russia, Ukraine and the European Union have called for an immediate halt to violence in Ukraine after talks in Geneva. But as Sonia Legg reports the prospect of further sanctions is being clouded by divisions within Europe and big companies.
Micro-organs to shape the future of personalised medicine
Researchers at Vanderbilt University are developing an artificial liver as part of a larger system of synthetic organs being built to test drugs. If successful, the technology will not only change the way drugs are developed and tested, but also provide doctors with a way to personalise treatment for patients with diseases ranging from heart disease to cancer. Ben Gruber has more
Gary Barlow - Sing (official diamond jubilee song)
Watch Gary Barlow's video for Sing, the official Diamond Jubilee song, featuring musicians from Commonwealth countries of Australia, Kenya, Jamaica and the Solomon Islands. Prince Harry and Prince Charles make an appearance in the video too.