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Satellite proliferation imperils astronomical observations, study finds

ESO researchers say satellite streaks can wipe out telescope views, and proposals for more than 1.7 million satellites could sharply reduce data quality.

SANTIAGO, Aug 20 : As thousands more satellites enter orbit, astronomers may face mounting difficulties in observing the cosmos, according to a study by the European Southern Observatory, which operates telescopes in northern Chile.The ESO study found that existing proposals to launch more than 1.7 million sa

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As thousands of new satellites enter orbit, astronomers may face increasing difficulties in observing the cosmos, according to a study by the European Observatory of the South (ESO), which operates telescopes in northern Chile. ESO's study found that current proposals to launch more than 1.7 million satellites in orbit, including some very bright ones, would substantially undermine astronomical speech. Currently, there are about 15,000 satellite…

·Rio de Janeiro, Brazil
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Satellites leave bright trails in images of the night sky as they pass through the telescope's field of view.

As thousands of new satellites enter orbit, astronomers may face increasing difficulties in observing the cosmos, according to a study by the European Observatory of the South (ESO), which operates telescopes in northern Chile. The study found that the current proposals to launch more than 1.7 million satellites in orbit, including some very bright ones, would substantially undermine astronomical speech. Currently, there are about 15,000 satelli…

·Quadra, Brazil
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Channel News Asia broke the news in Singapore, Singapore on Thursday, August 20, 2026.
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