Map Reveals Hidden Dark Matter Bridges Connecting Nearby Galaxies

The dark matter of the universe not only exists on the edges of galaxies, it also forms bridges between them. Now, for the first time, a map has been created that shows thousands of galaxy connections, including our own. The map is solid according to its nature. Its existence was discovered because the galaxy’s spin rate proved to be more present than we could see. However, despite the fact that about 85 percent of matter in the universe is made up, it does not absorb, reflect or interact with light, hence “darkness”.

Finding elements that we cannot even imagine and whose nature we do not even know is still a challenge. Nevertheless, four years ago astronomers made the first map of a bridge made of dark matter filaments between galaxies. They detected its presence by searching for distortions in the visible matter of the galaxy at both ends caused by the gravitational pull of the bridge. Penn State’s Dr Donghui Jeong said in a statement, previous dark matter maps involved vast distances of galaxies. “Ironically, the distribution of dark matter is even easier to study because it reflects a very distant past, which is much less complex.”

“Over time, as the larger-sized structures of the universe have grown, the complexity of the universe has increased, so it is naturally difficult to measure about dark matter locally.” Jeong and colleagues simulated the distribution of galaxies using a compromise-neural-network-based deep-learning algorithm and compared the output of our galaxy with data from 17,000 galaxies in 650 million light-years. In a paper adopted for publication in the Astrophysical Journal, they combined two sources of information published on a map of our local dark web. 

The accuracy of the map cannot be ascertained without seeing the dark matter or conducting any direct measurements. However, if their model is good, it is expected to reproduce some of the features we will see. Although Jiang admits that the match is not perfect, it is close enough to show that the simulations are on the right track. For example, a structure known as the “local sheet”, which connects the local group of our galaxies to larger Virgo clusters and the famous M81 and other galaxy groups, can be seen. The name “local invalid” may suggest exactly the same.