On October 4, 2019 (September 6, 2019 in the lunar calendar), scientists observed the mysterious cosmic network for the first time. Astrophysicists used the European Southern Observatory's very large telescope to directly observe and map the cosmic web for the first time. Their observations found that galaxies about 12 billion light-years away from Earth are connected by glowing gas filaments. These huge mysterious structures connecting distant galaxies are called the "cosmic web." This landmark and astonishing study was published in the October 4, 2019 issue of the journal Science. The confirmation of the existence of the "cosmic web" has also made previous "Big Bang" theories about the origin of galaxies more credible. The Big Bang is currently one of the most mainstream theories explaining the formation of the universe. According to this theory, about 13.7 billion years ago, the entire universe was formed by a singularity that expanded and evolved after a Big Bang. In the past, this assumption could only be supported by computer simulations, but this observed discovery of new galaxies forming along the cosmic web provides more direct evidence. Scientists detected a network of intergalactic gas filaments across young galaxies in a newly formed cluster by intensively observing light emitted by hydrogen emitted by galaxies in the distant Milky Way cluster SSA22, collecting these faint filaments and mapping their structures. Prior to this, scientists had only discovered occasional gas clouds extending outward from the galaxy. Observations of the Cosmic Network support the dark matter theory that galaxies form. This suggests that the hydrogen gas produced in the Big Bang first collapsed into thin sheets and then into huge filaments that span space. Where filaments intersect or gather together, galaxies are formed and power their growth by supplying them with a stable stream of gas. The latest observations suggest that the intersection between these giant filaments is the center of the active Milky Way, which contains "starburst" galaxies formed by supermassive black holes and active stars.