With its full constellation of artificial lights, planet Earth looks like a second sky when seen from outer space. That’s what shows us the Nighttime Lights of the World project, responsible for gathering images of different parts of the world when the sunlight’s out.
Led by Nasa and other organizations, it shows different social, geographical and economical evidences of the five continents, according to the amount of light they cast out.
Taken between 1993 and 2002, the pictures also explicit the evolution of energy spent along the years. The red dots, for instance, indicate recent lights, while the blue ones represent already extinct sources. Even though conceived with no artistic intentions, the study images are, to say the least, pretty amazing.
Light emission from year 1993
Light emission from year 2003
Comparative image of the 10-year period
The low amount of light cast from África can be seen on this darkened image
On Latin America, there’s a strong concentration of lights in Southeast Brazil and Argentina
On Norht America, the strongest emission of light comes from New York region
A great part of Asia, the world’s most populous continent, is strongly illuminated – specially in India and parts of China
Paris is one of the most illuminated points in Europe. No wonder why they call it “the city of light”
Oceania’s lack of light concentration can be explained by its low populational density
Site: Nighttime Lights of the World