Rauschenberg was the first artist to win the Golden Lion at the Venice Biennale in 1964, creating a crucial bridge between the abstract expressionists of the 50s and the pop artists who emerged in the 60s. Famous for his 'combines' that elevated the rich junk of life to the status of high art, he continued to work right up to his death in 2008, collaborating with dancers, scientists and social activists on a startlingly broad array of projects.