This amazing space wallpaper of North and South America at night is a composite assembled from data acquired by the Suomi NPP satellite in April and October 2012. The new data was mapped over ...

Most of California’s population — and thus the luminescence from city lights ... sky. It helps that this desert locale is ideal for visiting or camping in the winter, when the night ...

The starry nighttime sky our ancestors knew is disappearing from view for most of the planet’s population. Rampant artificial light in many parts of the world has become another urban pollutant ...