Self-cleaning solar panels and suicidal cancer cells - Naked Scientists NewsFLASH - 13.09.10

In this NewsFlash, we hear how scientists have created self cleaning solar panels using Mars Lander technology, how modified yeast could be used to make bioethanol more efficient, and how a new model of climate change suggests it may not be too late to reverse current trends. Plus what it is about particular pieces of music that can make you laugh or cry.