Speaking of pollution, we often just assume pollution pollution of air, water or soil. Actually there is one form of pollution that often we have neglected the light pollution. To follow up on the pollution level, various organizations, including NASA and ESA, join and create a project called "Cities at Night". The project aims to examine the level of light pollution in many cities in the world and examines the impact.
The project "Cities at Night" involving astronauts and International Space Station (ISS) to take pictures and data on pollution in many cities in the world directly from space. From the data collected to date, there are some facts that quite surprising. The light emitted by a large class of mega cities, it still can be detected up to tens or even hundreds of kilometers from the city area. In addition, the researchers also found that several European countries are heavily indebted large enough turned out to have a high level of light pollution.
The discovery certainly confirms that light pollution not only affects the environment, but also can be used as one parameter of economic conditions in a country or city. Light pollution also leads astronomers will be more difficult to observe the star because the light emitted by the lamps in the city causing visibility to the sky is getting shorter. If you want to see the data research, you can visit the official website of "Cities at Night".
Written By : Arbha ~ Public-DYK
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