A luminous photographic consideration of atmospheric phenomena, visual perception and life on Earth, from the author of Des OiseauxIn Cloud Physics, American photographer Terri Weifenbach explores the vital interconnection of our planet's clouds and the intimate forms and textures of its biological life. The backbone of this work is a series of photographs (for which she received a Guggenheim Fellowship in 2015) made at an American research facility used for the study and measurement of clouds, their origin, structure, particles and solar relationships. The exotic instruments she portrays are designed to express ephemeral atmospheric phenomena as sets of numeric data, yet Weifenbach's camera (and her way of seeing) renders our organic terrestrial world as an unquantifiable mystery.