As shown in this video, NASA scientists have released a new map of global nighttime lights as observed in 2016! The new map -- a composite image produced with data from all months of each year -- was made possible by Suomi NPP's Visible Infrared Imaging Radiometer Suite (VIIRS) instrument, which detects photons of light reflected from Earth's surface and atmosphere in 22 different wavelengths. One of those wavelengths is a special “day-night band,” which allows the spacecraft to zero-in on night