Filament of cosmic web set aglow

Filament of cosmic web set aglow

Rare glimpse at massive outstretched gas cloud could reveal universe’s hidden structure

By Gabriel Popkin, 14:55 PM January 20, 2014

All of the universe’s matter, cosmologists believe, forms a web of dark matter and gas that was spun shortly after the Big Bang and has been stretching out ever since. Now astronomers say they have glimpsed a brightly lit strand of this web.

But the researchers found far more cold gas than they expected based on computer simulations of the cosmic web, suggesting the web’s structure could differ from theoretical predictions.

Most of the universe’s mass seems to reside in slender interconnected f...

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