SocietyThis is how to avoid annihilating ourselves in a nuclear war We have been lucky to dodge nuclear Armageddon so far, but we can't keep trusting to fortune. If we don't want to wipe ourselves out, here's what we need do next, says Mark LynasComment
TechnologyLasers can help detect radioactive materials from afar In a record-breaking test, researchers remotely detected radioactive material by shooting it with infrared laser pulses and analysing how the light scattered News