A new study has revealed that light pollution is not just a nuisance for star-gazers, but is also having a significant impact on astronomers. Researchers from the University of Pennsylvania have found that light pollution is making it more difficult for astronomers to observe the night sky. The study estimates that over the last two decades the amount of artificial light in the night sky has increased by more than 20 percent. This has resulted in a decrease in the quality of data that astronomers are able to obtain. The research team concluded that light pollution is now an important factor in the ability of astronomers to conduct their observations.

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source: Phys.org