A new image reveals the structure of the cosmic web
Researchers have mapped light emitted by tendrils of gas that are strung between galaxies
![galaxy cluster](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/10/100119_EC_cosmic-brief_feat.jpg?fit=1028%2C579&ssl=1)
Scientists have spotted filaments of gas (blue) in the cosmic web, which thread between galaxies (bright spots). The gas and some of the galaxies are part of a protocluster, a clump of galaxies in the process of forming.
Hideki Umehata