The Earth at Night

NASA has posted some amazingly beautiful pictures of our planet at night.

City Lights of the United States 2012

Black Marble - Africa, Europe, and the Middle East

These pictures are “. . . [a} global composite image, constructed using cloud-free night images from a new NASA and National Oceanic and Atmospheric Administration (NOAA) satellite, shows the glow of natural and human-built phenomena across the planet in greater detail than ever before.”

The entire set can be found here.