Science
Nasa approves spacecraft for asteroid trip 'Cherry tree from space' mystery baffles Japan Main anti-swine flu drugs found to be useless New technique converts astronaut pee into fuel, drinking water Optimism associated with lower risk of heart failure, study says		Astronomers spot first possible 'exomoon' Scientists create world's first vagina in lab using patients' tissues British Museum uses CT scan to examine mummies Now, see how your child will age Your childhood memories go further back than you think, new study says