Documenting the Invisible is a polemical text that examines the potentials of documentary-based art to create useful aesthetic representations of ‘The Anthropocene’. The article is a result of the practice-based collaboration between researcher and curator Peter Ole Pedersen and the artists Christian Danielewitz and Anu Ramdas. Thus, it is both a description and reflection of their project Against the Grain, an artistic documentation and exhibition of the environmental crisis at Weikuang Dam in Inner Mongolia and a more general discussion of the term ‘The Anthropocene’ and the challenges of representing it in art and photography, as well as visually representing phenomena like deep time and radioactivity. The article discusses Bruno Latour’s reflections on agency and the Anthropocene as well as the relations between documentary and fiction put forth by Jacques Rancière.