The clouds above us teem with strange creatures

image: NatalyFox/Shutterstock

There is another living world above our own, a community of microorganisms, including bacteria, fungi, viruses, and other microscopic life form, who live in the clouds above us. Their habitat is called the aerobiome and it's the subject of Air-Borne: The Hidden History of the Life We Breathe, a new book by esteemed science w…