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Ancient Cosmic Web Discovered: 850,000 Light-Years Long!

2/1/2025

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Summary

Story summary

Astronomers in Chile have made an astonishing discovery: a cosmic web filament stretching 850,000 light-years, dating back 11.7 billion years. Utilizing the Very Large Telescope, they uncovered seven galaxies within this ancient structure. This groundbreaking finding sheds light on galaxy formation and the early universe, showcasing a Lyman-alpha nebula with low metallicity, vital for understanding cosmic evolution.

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Story summary

Astronomers in Chile have made an astonishing discovery: a cosmic web filament stretching 850,000 light-years, dating back 11.7 billion years. Utilizing the Very Large Telescope, they uncovered seven galaxies within this ancient structure. This groundbreaking finding sheds light on galaxy formation and the early universe, showcasing a Lyman-alpha nebula with low metallicity, vital for understanding cosmic evolution.