What is dark matter in todayβs physics?
Dark matter is one of the most fascinating mysteries of modern physics π. It is an invisible form of matter that cannot be directly observed because it does not emit, absorb, or reflect light π. Although we cannot detect it with ordinary telescopes, scientists are certain that it exists due to its strong gravitational influence on galaxies and the universe.
In space, stars in galaxies move in ways that cannot be explained by visible matter alone π . They move much faster than expected, which suggests that an invisible "mass" is holding them all together. This invisible mass is what we call dark matter.
Dark matter does not interact with light, but it does interact with it through gravity πͺ. This makes it extremely difficult to study. Scientists believe that it makes up about 27% of the universe, while ordinary matter (such as stars, planets, and humans) only makes up about 5% π.
Researchers use powerful tools like space telescopes, particle detectors, and large experiments at CERN π¬ to search for dark matter particles. They also study galaxy clusters and cosmic radiation to find clues.
Although we still don't know what dark matter is made of, several theories suggest it could be made of unknown particles like WIMPs or axions π§ͺ.
Dark matter is important because it helps explain how galaxies formed and how the universe evolved over billions of years π. Without it, the universe as we know it wouldn't exist.
Understanding dark matter could unlock some of the deepest mysteries of the universe πβ¨.
