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Light Pollution
April 24 , 2021
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- The Researchers recently found that Light pollution from satellites 'poses threat' to astronomy.
- Artificial satellites and space junk orbiting the Earth can increase the brightness of the night sky.
- The overall brightness of the night sky will be increased by more than 10 per cent above natural light levels across the planet.
- Such light pollution could hinder astronomers’ ability to make observations of our universe.
- There are more than 9,200 tonnes of space objects in orbit around the Earth.
- The space junk not only poses a collision risk but, together with other space objects, is contributing to light pollution.
- The sunlight, reflected and scattered from space objects, can appear as streaks in observations made by ground-based telescopes.
- This research is the first to assess the overall impact of space objects on the night sky.
- Earlier the effect of individual satellites and space debris affecting astronomers' images of the night skies was analysed.
- The researchers belong to the Comenius University in Slovakia.
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