Filament of cosmic web set aglow
Rare glimpse at massive outstretched gas cloud could reveal universe’s hidden structure
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/01/all30.jpg?fit=860%2C460&ssl=1)
GIANT STRUCTURES The cosmic web shows dark matter filaments and intersections where galaxies reside, in a computer simulation.
Anatoly Klypin/New Mexico State University, Joel Primack/UC Santa Cruz