Something Enormous Is Hiding in the Cosmic Web

By NASA Space News

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Astronomers may have discovered an enormous cosmic structure spanning more than 3.3 billion light-years across the universe. Known as the Giant Ring, this newly proposed structure could connect previously mapped features including the Giant Arc and a newly identified Northern Arc. Even stranger, the famous Big Ring lies within the same enormous region of the sky. Researchers discovered these structures using quasar observations and Mg II absorption systems from the Sloan Digital Sky Survey, allowing them to trace matter that would otherwise be extremely difficult to see. But the Giant Ring raises a much bigger question: are astronomers looking at one genuine cosmic structure, several overlapping structures, or an extraordinary pattern within the cosmic web? The discovery has renewed debate over the Cosmological Principle, the large-scale structure of the universe, and whether enormous structures like the Giant Arc and Giant Ring can be fully explained by the standard ΛCDM model of cosm

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