Samira Daneshvar is an environmental historian and theorist who works at the intersection of science, media, and technology. Her first book project, Thinking with Things: A Matter of Objects in the Science of Radiation, is an intellectual history of the detection of new properties of matter alongside the discovery of new forms of radiation at the turn of the twentieth century. She shows how shadow pictures, produced by innovative techniques of visualization, turned ordinary objects into wonders of scientific inquiry, ultimately giving rise to the conceptualization of matter as porous and permeable to environmental influences. Samira is also working on a project that concerns select radioactive landscapes in North America. Sustaining radiation as a medium of inscription and permeability as a material and epistemic condition, in this research, she is examining underground, atmospheric, and underwater territories as archival artifacts.