The space between galaxies is not empty. In a new map of the early universe, those “blank” stretches take on a faint, hydrogen-blue glow that had mostly escaped surveys until now. Astronomers working ...

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Scientists mapped a hidden "sea of light" from hydrogen 9–11 billion years ago, revealing how the early universe was structured. When you purchase through links on our site, we may earn an affiliate ...

Astronomers have produced one of the most accurate, comprehensive cosmic maps ever made, revealing a brilliant "sea of light" that permeated the early universe. Unlike other universal maps, this 3D ...

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