One of the greatest challenges to our traditional understanding of the universe is the so-called “satellite disc problem”. Essentially, scientists are puzzled that smaller galaxies orbit larger galaxies in thin, flat planes, rather than in the chaotic orbits that would be expected from the Lambda Cold Dark Matter Model (ΛCDM) – the “very successful model” that determines how we observe space.
To circumvent this problem, scientists now assume that particles called “symmetries” create invisible walls in space, which astronomers call “field walls”. This, in turn, creates what University of Nottingham astronomers Aneesh Naik and Clare Burrage describe as a potential “fifth force” in physics.
Scientists think they have an explanation for why smaller galaxies orbit larger galaxies on somewhat flat planes. Photo credit: NASA Photo and Video Library
at the New article found hereas already mentioned BGR, the two said they were able to demonstrate the effect with “a simple simulation of a game model containing point-like satellites and an infinite field wall.” The new theory is notable because it explains the satellite’s disk problem without eliminating dark matter.
Dark matter is non-luminous matter that makes up regarding 85 percent of all matter in the universe. It can take many forms, from weakly interacting particles to randomly moving high-energy particles created following the Big Bang.
Dark matter is still not well understood by scientists. Recently, scientists were amazed by a diffuse galaxy that appeared to lack dark matter. Like much in the rest of the universe, its true nature remains a mystery.
In the meantime, scientists will continue to explore the potential of “symmetry” with more detailed simulations. For more science news, see how NASA plans to use Unreal Engine 5 to prepare astronauts for Mars and how newly discovered fossils reveal the differences between ancient dogs and our faithful companions.
Blogging Credit: NASA Photo and Video Library
Kat Bailey is IGN’s Senior News Editor and co-host for Nintendo Voice Chat. Do you have a tip? Send her a message directly to the_katbot.
