 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 a variety of terrestrial and extraterrestrial sources, providing a wealth of data for a range of applications. This data can be used to expand existing applications as well as enable entirely new areas of research. This article was authored by Stephen D. Miller, William Straka, Stephen P. Mills, and others.