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The Boötes Void Is The Largest In The Known Universe, Stretching Over 330 Million Light-Years Across | Collector
The Boötes Void Is The Largest In The Known Universe, Stretching Over 330 Million Light-Years Across
IFLScience

The Boötes Void Is The Largest In The Known Universe, Stretching Over 330 Million Light-Years Across

If our galaxy was in the middle of the Boötes void, we wouldn’t have known there were other galaxies until the 1960s.

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