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The intergalactic medium unveiled: Caltech's Cosmic Web Imager
The intergalactic medium unveiled Caltech's Cosmic Web Imager
2014/5/13
Caltech astronomers have taken unprecedented images of the intergalactic medium (IGM)—the diffuse gas that connects galaxies throughout the universe—with the Cosmic Web Imager, an instrument designed ...
![](http://www.firstlight.cn/upload/imgfile/20143/17/201431713850208.jpg)
Astronomers have discovered a distant quasar illuminating a vast nebula of diffuse gas, revealing for the first time part of the network of filaments thought to connect galaxies in a cosmic web. Resea...