 The Suomi NPP satellite has opened up a new world of possibilities for studying nocturnal light. It can detect visible and near-infrared light emitted from both terrestrial and extraterrestrial sources, allowing for a much wider range of applications than ever before. This opens up a plethora of new research opportunities, as well as providing a foundation for future satellite-based low-light visible sensors. This article was authored by Stephen D. Miller, William Straka, Stephen P. Mills, and others.