The Brown Cloud Project is a study that uses an immaterial material aerogel, a material that sits between the virtual and the physical world to ask new questions regarding the environment. It is through this cross-collaborative process that the medium of silica aerogel was manufactured, a product that fused scientific research with artistic vision, enabling ethereal physicality. This paper presents a fundamental issue that rests on an individual culture's perception, historical experience and associations. The chapter ‘light' investigates the importance of light and its role in the enlightenment. Finally, sky addresses the ether, the invisible yet present atmosphere that surrounds us as humans, viewed as something intangible that has the possibility of being made tangible, and investigated through the medium of art.