Scientists have concluded that observing the interaction of dark matter and hypothetical particles called dark photons in the period after the Big Bang, known as cosmic dawn, will help understand the nature of the most mysterious form of matter in the Universe. The study was published in the journal Physical Review D, writes Space.

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Everything we can see around us, including all planets, stars, interstellar gas and dust, is made of ordinary matter.. But it makes up only 15% of all matter in the Universe. The remaining 85% is dark matter, and physicists still have little idea what it is.

One of the reasons that scientists cannot fully understand the nature of dark matter is that it is virtually invisible because it does not interact with light particles or photons like ordinary matter.. Physicists believe there is a hypothetical particle called a dark photon that could interact with dark matter the way ordinary matter interacts with ordinary photons..

The study authors believe that such interactions of dark photons and dark matter during the post-Big Bang period known as the cosmic dawn (which lasted approximately 500 million years after the birth of the Universe) could have left a consistent trace that can be detected. This trace could be used to unlock the secrets of dark matter.

Physicists believe that the interactions of dark photons with dark matter will create vibrations in space similar to the sound waves that disappeared after the end of the cosmic dawn..

Despite the mystery of dark matter, it is believed that it played a key role in the creation of galaxies. This means that hypothetical interactions between dark photons and dark matter, known as dark acoustic oscillations, could reveal how large-scale structures in the Universe formed.

The existence of dark matter has been determined by the way it interacts with gravity and shapes the fabric of space through this influence. During cosmic dawn, the first stars and galaxies appeared, making it an ideal time to study how dark matter influenced galaxy formation.. This is also the period that can best show how dark matter behaves and what properties it has, physicists say.

If dark photons existed during the cosmic dawn, then their interaction with dark matter could leave traces in the formation of galaxies. Scientists believe that dark acoustic vibrations have created areas of space with higher and lower densities. Galaxies should have formed faster in denser regions of space. Although these fluctuations have disappeared over time, they can still be detected, although not very easily, in the coming years, physicists say.

As Focus already wrote, time travel is possible, because physicists have solved the “murdered grandfather paradox”. In theories that suggest the possibility of returning to the past, one of the main problems is the “murdered grandfather paradox”. His solution suggests that time travel is theoretically possible.

Focus also wrote that scientists have created a new alloy of niobium, silicon and hafnium, which will help create improved engines for supersonic aircraft.