Each time lightning bursts in the Earth’s atmosphere, it releases radio atmospheric signals, or “sferics,” low-frequency radio waves that blanket the planet. Sensing Sferics explores the histories and technologies of listening to these natural radio signals across media arts and the atmospheric sciences, with particular attention to the craft of listening itself. From recordings of sferics taken from different sites on the Eastern Shore and across the Mid-Atlantic, to “listening parties” in local national and state parks at 3 AM, to workshops in building DIY antenna from found natural materials such as branches and twigs, Sensing Sferics asks us to reflect on how the media technologies and practices we habitually think of as human-made or otherwise “artificial” are in fact deeply environmental, and how listening can function as a mode of environmental media analysis and critique.