Nasa Satellite Images Of Earth At Night
We may be used to seeing the true color satellite images that mimic what the human eye perceives but the night lights layer shows earth at night and the illuminations that emanate from earth back into space.
Nasa satellite images of earth at night. Nasa researchers have used these images of nighttime lights to study weather around urban areas. It took over nine days in april 2012 and thirteen days in october 2012 during 312 orbits at 824 kilometers 512 miles to capture the whole earth. Today at the american geophysical union meeting in san francisco scientists unveiled an unprecedented new look at our planet at night 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 earth in greater detail than ever. Satellite images of earth at night have been a curiosity for the public and a tool of fundamental research for at least 25 years.
Viewing earth at night affords us a different view of earth s surface. They have provided a broad beautiful picture showing how humans have shaped the planet and lit up the darkness. Scientists unveiled today an unprecedented new look at our planet at night. Two versions of the images are available.