Which known cosmic structure is the largest filament mapped in the nearby universe?
Quick Answer
One of the largest mapped filaments is the Hercules–Corona Borealis Great Wall. It is an enormous apparent structure identified from gamma-ray burst clustering, though its full nature remains debated.
The Full Story
The Hercules–Corona Borealis Great Wall is one of the largest cosmic structures ever proposed. It was identified in 2013 from the distribution of gamma-ray bursts, which suggested an immense concentration of matter across billions of light-years. Because the evidence comes from an indirect method, astronomers continue to debate how to interpret it. Even so, it highlights how the large-scale universe is arranged in a vast cosmic web of filaments and voids.
Key Facts
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"The universe may be threaded with structures so huge they challenge our models."