Union leaders and workers at the March for Jobs, part of a campaign organised by the Unite union in Birmingham. The demonstration was part of a campaign to press ministers to do more to help manufacturers weather the recession and hold back the tide of job losses that has engulfed British industry. The chancellor, Alistair Darling, later shrugged off gloomy forecasts and claimed the recession would be over by Christmas Photograph: David Jones/PAJapan suffered a record fall in GDP, which shrank at an annualised rate of 15.2% between January and March, the worst decline since records began in 1955 Photograph: Toru Hanai/ReutersSpace shuttle astronaut Mike Massimino, part of the Nasa team sent to repair and upgrade the Hubble space telescope. Massimino sent the first 'tweets' from orbit to Twitter, the social networking site, on which he is known as Astro_Mike. One message read: 'From orbit: Just saw Orion’s nebula in the night sky – the sights make all the hard work and risk worthwhile for me'Photograph: AFP/Getty Images