New stunning nighttime views of Earth unveiled
Earth At Night
A 1/20 scale model of the National Aeronautics and Space Administration-National Oceanic and Atmospheric Administration's Suomi National Polar-orbiting Partnership satellite, which was launched last year, is seen Wednesday, Dec. 5, 2012, at the American Geophysical Union meeting in San Francisco. A new sensor aboard this satellite is enabling scientists to observe Earth's atmosphere and surface during nighttime hours, in greater detail than ever before. (AP Photo/Ben Margot)