This week Drs Chris, Dave and Phil find out how a venomous spider has got scientists swollen with excitement because it's bite has Viagra-like properties, how maggots are fighting off MRSA from ulcers, and NASA are testing their next generation telescope aboard a jumbo jet. The docs also explore the science of getting geostationary satellites into space, the basis of bacterial intelligence, and how much water trees drink on a hot day. Plus, in kitchen science, Dave and Ben put their heads in a box...to find out how a pinhole camera works. Like this podcast? Please help us by supporting the Naked Scientists