Outbreak: As human populations multiply, new animal borne-diseases are crossing the species barrier. In this issue of Cosmos Magazine, we look at the 13 deadliest emerging diseases globally, and asks, we catch the next lethal virus before it catches us out? We also dive into the untapped chemical treasures in marine organisms - will they lead us to new life-saving medicines? And the risks and rewards of developing new medicines, from the lab to your pharmacy shelf. Don’t miss this special issue on the frontlines of medical research. Plus, can plants see, hear and smell? New evidence suggests plants see more than you think – from the colour of your t-shirt to where you are in the room. And, sail the frontiers of balloon astronomy, where the opportunities for new cosmic discoveries are sky high.