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Whose observations first showed that the universe contains galaxy clusters and large-scale structure?
Quick Answer
Harlow Shapley and later astronomers mapped clusters and superclusters, revealing that galaxies are not scattered randomly. Their work helped uncover the cosmic web.
The Full Story
Astronomers gradually realized that galaxies are grouped into clusters, superclusters, and filaments rather than sprinkled uniformly through space. Harlow Shapley’s cluster studies were part of the early effort to map large-scale structure, and later surveys made the pattern unmistakable. Modern cosmology describes this arrangement as the cosmic web. It is one of the biggest structures in the observable universe.
Key Facts
1.20th-century large-scale mapping
2.Revealed clustered galaxy distribution
3.Led to the cosmic web concept
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Suggested video title for this topic:
"The discovery that the universe has a web-like skeleton"
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