 Lorenzo Bruzzoni and Leonardo Carre of the University of Trento in Italy, blending science with fiction. A reminder, this is Science in Action from the BBC World Service. So, lots of things to be excited about out in space. But down here on Earth, there are always worries. And in the magazine Science, there's a call for a redoubling of efforts to tackle malaria in Africa, as signs grow that a leading treatment is becoming less effective.