Shiny satellites and space junk orbiting Earth may have increased the brightness of the night sky by more than 10 percent above the natural light levels, a new study has found, and further stated that these objects in the sky could also pose a threat to our viewing of the universe. The research, published in the Monthly Notices of the Royal Astronomical Society, a scientific journal, is the first to examine the overall effect of space objects on the night sky rather than the impact of individual satellites and space debris affecting astronomers' images. Miroslav Kocifaj of the Slovak Academy of Sciences and Comenius University in Slovakia, who led the study, said the primary objective of their research was to estimate the potential contribution of external sources to night sky brightness. These include space objects in Earth's orbit. "We expected the sky brightness increase would be marginal, if any, but our first theoretical estimates have proved extremely surprisi...
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